datavorous/entrance-exam-dataset huggingface dataset:
What is the other name for plant growth regulators?

Options:
A Plant growth substances
B Plant enzymes
C Plant fats
D Plant sugars

The correct answer is:
Plant growth substances

Solution:
Plant growth regulators are also described as plant growth substances, plant hormones or phytohormones in literature.

Topic: Biology, Plant - Growth and Development, NEET
What is the other name for Vasopressin hormone?

Options:
A Anti-diuretic hormone
B Gonadotrophin
C Melanocyte-stimulating hormone
D Oxytocin

The correct answer is:
Anti-diuretic hormone

Solution:
Vasopressin is also called as anti-diuretic hormone (ADH).

Topic: Biology, Chemical Coordination and Integration, NEET
What is the other term for Coronary Artery Disease?

Options:
A Cardiac Artery Disease
B Atherosclerosis
C Vascular Artery Disease
D Portal Artery Disease

The correct answer is:
Atherosclerosis

Solution:
Coronary Artery Disease is often referred to as atherosclerosis.

Topic: Biology, Body Fluids and Circulation, NEET
What is the outcome if the plasmid in the bacteria has an insert?

Options:
A Blue colored colonies
B Recombinant colonies
C Non-recombinant colonies
D No color in colonies

The correct answer is:
No color in colonies

Solution:
If the plasmid in the bacteria has an insert, it results into insertional inactivation of the β-galactosidase gene and the colonies do not produce any color, these are identified as recombinant colonies.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the outcome of advantageous mutations being selected over a few generations?

Options:
A Observation of new phenotypes
B Evolution
C Speciation
D Stabilization

The correct answer is:
Speciation

Solution:
Over a few generations, advantageous mutations being selected will result in the observation of new phenotypes and speciation.

Topic: Biology, Evolution, NEET
What is the outcome of eutrophication on the environment?

Options:
A Enhances the beauty of the environment
B Degrades the environment
C Has no impact on the environment
D Improves the quality of the environment

The correct answer is:
Degrades the environment

Solution:
Eutrophication, either natural or accelerated by man's activities, can lead to degradation of the environment, as it causes overgrowth of algae, loss of dissolved oxygen, and can poison whole populations of fish.

Topic: Biology, Environmental Issues, NEET
What is the outcome of inbreeding?

Options:
A Increased fertility and productivity
B Decreased fertility and productivity
C Increased homozygosity
D Decreased homozygosity

The correct answer is:
Increased homozygosity

Solution:
Inbreeding increases homozygosity.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the outcome of spreading transformed cells on agar plates containing an antibiotic?

Options:
A Both transformed and untransformed cells will grow
B Only untransformed cells will grow
C Only transformed cells will grow
D Neither transformed nor untransformed cells will grow

The correct answer is:
Only transformed cells will grow

Solution:
If transformed cells are spread on agar plates containing an antibiotic, only the transformed cells will grow because they have the gene for resistance to the antibiotiC)

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the outcome of Telophase I in meiotic division?

Options:
A The chromosomes align on the equatorial plate
B The dyad of cells
C The homologous chromosomes separate
D The replication of DNA occurs

The correct answer is:
The dyad of cells

Solution:
During Telophase I, the nuclear membrane and nucleolus reappear, cytokinesis follows and this results in a dyad of cells.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the outcome of the Cannizzaro reaction for aldehydes without α-hydrogen atoms?

Options:
A Formation of alcohols only
B Formation of carboxylic acids only
C Formation of both alcohols and carboxylic acid salts
D No reaction occurs

The correct answer is:
Formation of both alcohols and carboxylic acid salts

Solution:
In the Cannizzaro reaction, aldehydes without α-hydrogen atoms undergo self-oxidation and reduction, resulting in the formation of both alcohols and carboxylic acid salts.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What is the outcome of the change in shape of the receptor site when it accommodates a chemical messenger?

Options:
A The chemical messenger is destroyed.
B The chemical messenger is released into the cytoplasm.
C The chemical messenger enters the cell.
D The message is transferred into the cell.

The correct answer is:
The message is transferred into the cell.

Solution:
The change in shape of the receptor site brings about the transfer of the message into the cell.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the outcome of the coupled reaction between GTP and GDP?

Options:
A Synthesis of OAA
B Synthesis of NADH
C Synthesis of ATP from ADP
D Synthesis of NAD⁺

The correct answer is:
Synthesis of ATP from ADP

Solution:
In a coupled reaction, GTP is converted to GDP with the simultaneous synthesis of ATP from ADP.

Topic: Biology, Respiration in Plants, NEET
What is the outcome of the fusion of the other male gamete with the two polar nuclei located in the central cell?

Options:
A Formation of a diploid cell
B Formation of a triploid primary endosperm nucleus
C Development into the endosperm
D Development into an embryo

The correct answer is:
Formation of a triploid primary endosperm nucleus

Solution:
The fusion of the other male gamete with the two polar nuclei in the central cell results in the formation of a triploid primary endosperm nucleus (PEN).

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the outcome of the process of dialysis?

Options:
A Coagulation of colloidal particles
B Precipitation of colloidal solution
C Diffusion of molecules and ions into the outer water
D Evaporation of the colloidal solution

The correct answer is:
Diffusion of molecules and ions into the outer water

Solution:
The outcome of the process of dialysis is the diffusion of molecules and ions through the membrane into the outer water, leaving behind a pure colloidal solution.

Topic: Chemistry, Surface Chemistry, NEET
What is the outcome of treating a nitrile with a Grignard reagent followed by hydrolysis?

Options:
A Formation of carboxylic acids
B Formation of esters
C Formation of aldehydes
D Formation of ketones

The correct answer is:
Formation of ketones

Solution:
Treating a nitrile with a Grignard reagent followed by hydrolysis results in the formation of ketones.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What is the outcome when a cyclist traveling at 18 km/h on a level road takes a sharp circular turn with a radius of 3 m without reducing their speed, given that the coefficient of static friction between the tires and the road is 0.1?

Options:
A Yes, the cyclist will slip
B No, the cyclist will not slip
C It depends on the cyclist's weight
D It depends on the type of bicycle tires

The correct answer is:
Yes, the cyclist will slip

Solution:
Correct Option is : (A)
Yes, the cyclist will slip

Topic: Chemistry, Laws of Motion, NEET
What is the outer layer of the cranial meninges called?

Options:
A Dura mater
B Arachnoid
C Pia mater
D None of the above

The correct answer is:
Dura mater

Solution:
The outer layer of the cranial meninges is called the dura mater.

Topic: Biology, Neural Control and Coordination, NEET
What is the outer layer of the kidney called?

Options:
A Cortex
B Medulla
C Capsule
D Columns of Bertini

The correct answer is:
Capsule

Solution:
The outer layer of the kidney is a tough capsule.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the outermost covering of a seed called?

Options:
A Testa
B Tegmen
C Hilum
D Seed coat

The correct answer is:
Seed coat

Solution:
The outermost covering of a seed is called the seed coat.

Topic: Biology, Morphology of Flowering Plants, NEET
What is the outermost layer of a dicot root ?

Options:
A Epiblema
B Cortex
C Endodermis
D Pericycle

The correct answer is:
Epiblema

Solution:
The outermost layer of Dicot root is epiblema.

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the outermost layer of a typical young dicotyledonous stem?

Options:
A Epidermis
B Hypodermis
C Endodermis
D Cortex

The correct answer is:
Epidermis

Solution:
The transverse section of a typical young dicotyledonous stem shows that the epidermis is the outermost protective layer of the stem.

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the outermost layer of an artery and vein?

Options:
A Tunica intima
B Tunica media
C Squamous endothelium
D Tunica externa

The correct answer is:
Tunica externa

Solution:
The outermost layer of an artery and vein is the tunica externa. It is composed of fibrous connective tissue with collagen fibres.

Topic: Biology, Body Fluids and Circulation, NEET
What is the outermost layer of the monocot stem?

Options:
A Epidermis
B Hypodermis
C Cortex
D Endodermis

The correct answer is:
Hypodermis

Solution:
The monocot stem has a sclerenchymatous hypodermis as the outermost layer.

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the outermost layer of the wall of the alimentary canal?

Options:
A Serosa
B Muscularis
C Sub-mucosa
D Mucosa

The correct answer is:
Serosa

Solution:
The wall of alimentary canal from oesophagus to rectum possesses four layers namely serosa, muscularis, sub-mucosa and mucosa. Serosa is the outermost layer and is made up of a thin mesothelium (epithelium of visceral organs) with some connective tissues.

Topic: Biology, Digestion and Absorption, NEET
What is the outermost protective layer of a leaf?

Options:
A Epidermis
B Mesophyll
C Vascular system
D Bundle sheath cells

The correct answer is:
Epidermis

Solution:
The epidermis is the outermost protective layer of the leaf and covers both the upper and lower surfaces of the leaf.

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the outlet of the biogas plant connected to in order to supply biogas to nearby houses?

Options:
A A drain
B A pipe
C A gas cylinder
D A generator

The correct answer is:
A pipe

Solution:
The biogas plant has an outlet, which is connected to a pipe to supply biogas to nearby houses.

Topic: Biology, Microbes in Human Welfare, NEET
What is the output frequency in half-wave rectification when the input frequency is 50 Hz?

Options:
A 50 Hz
B 25 Hz
C 100 Hz
D 75 Hz

The correct answer is:
50 Hz

Solution:
Correct Option is : (A)
50 Hz

Topic: Chemistry, Semiconductors, NEET
What is the output of the carboxylation stage of the Calvin cycle?

Options:
A Glucose
B 3-PGA
C RuBP
D ATP

The correct answer is:
3-PGA

Solution:
The carboxylation stage of the Calvin cycle results in the formation of two molecules of 3-PGA from CO₂ and RuBP.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the output Y in the following circuit, when, all the three inputs A, B, C are first 0 and then, 1?

Options:
A 0, 1
B 0, 0
C 1, 0
D 1, 1

The correct answer is:
1, 0

Solution:
Output, Y=A⋅B⋅C¯=A¯+B¯+C¯.
When, A, B, C are 0→Y=1.
When, A, B, C are 1→Y=0.

Topic: Physics, Semiconductors, NEET, NEET 2016 (Phase 2)
What is the overall cell reaction in a lead storage battery during use?

Options:
A Pb(s) + PbO2(s) + 2H2SO4(aq) → 2PbSO4(s) + 2H2O(l)
B PbSO4(s) + 2H2O(l) → Pb(s) + PbO2(s) + 2H2SO4(aq)
C PbO2(s) + 2H2SO4(aq) → Pb(s) + PbSO4(s) + 2H2O(l)
D None of the above

The correct answer is:
Pb(s) + PbO2(s) + 2H2SO4(aq) → 2PbSO4(s) + 2H2O(l)

Solution:
The overall cell reaction in a lead storage battery during use is:Pb(s) + PbO2(s) + 2H2SO4(aq) → 2PbSO4(s) + 2H2O(l).

Topic: Chemistry, Electrochemistry, NEET
What is the overall charge of carbanions?

Options:
A Positive
B Negative
C Neutral
D Variable

The correct answer is:
Negative

Solution:
Carbanions is carbon species carrying a negative charge on the carbon atom, indicating a negative overall charge.

Topic: Chemistry, General Organic Chemistry, NEET
What is the overall charge of the products in this reaction 2 Na(s) + H2(g) → 2 NaH (s)?

Options:
A Positive
B Negative
C Neutral
D Cannot be determined

The correct answer is:
Neutral

Solution:
The reaction produces 2 NaH molecules, which are both neutral compounds, resulting in a neutral overall charge.

Topic: Chemistry, Redox Reactions, NEET
What is the overall purpose of primary batteries, such as the dry cell?

Options:
A To provide a continuous source of electrical energy
B To convert heat energy into electrical energy
C To store electrical energy for future use
D To supply electrical energy for a single use

The correct answer is:
To supply electrical energy for a single use

Solution:
In primary batteries, the reaction occurs only once, indicating that their purpose is to supply electrical energy for a single use.

Topic: Chemistry, Electrochemistry, NEET
What is the overall reaction during the discharge of a nickel-cadmium cell?

Options:
A Cd (s) + 2Ni(OH)3 (s) → CdO (s) + 2Ni(OH)2 (s) + H2O (l)
B CdO (s) + 2Ni(OH)2 (s) + H2O (l) → Cd (s) + 2Ni(OH)3 (s)
C Cd (s) + 2Ni(OH)2 (s) → CdO (s) + 2Ni(OH)3 (s) + H2O (l)
D None of the above

The correct answer is:
Cd (s) + 2Ni(OH)3 (s) → CdO (s) + 2Ni(OH)2 (s) + H2O (l)

Solution:
The overall reaction during discharge of a nickel-cadmium cell as: Cd (s) + 2Ni(OH)3 (s) → CdO (s) + 2Ni(OH)2 (s) + H2O (l).

Topic: Chemistry, Electrochemistry, NEET
What is the overall reaction for the corrosion of iron?

Options:
A 2 Fe (s) → 2 Fe2+ + 4 e-
B O2(g) + 4 H+(aq) + 4 e- → 2 H2O (l)
C 2Fe(s) → 2Fe2+(aq) + 2 H2O (l)
D 2Fe(s) + O2(g) + 4H+(aq) → 2Fe2+(aq) + 2 H2O (l)

The correct answer is:
2Fe(s) + O2(g) + 4H+(aq) → 2Fe2+(aq) + 2 H2O (l)

Solution:
The overall reaction for the corrosion of iron is"2Fe(s) + O2(g) + 4H+(aq) → 2Fe2+(aq) + 2 H2O (l)."

Topic: Chemistry, Electrochemistry, NEET
What is the overall reaction for the electrolysis of brine solution?

Options:
A 2H2O(l) + 2Na+(aq) + 2Cl–(aq) → Cl2(g) + H2(g) + 2Na+(aq) + 2OH–(aq)
B 2H2O(l) + 2Na+(aq) + 2Cl–(aq) → 2Cl2(g) + 2H2(g) + 2Na+(aq) + 2OH–(aq)
C 2H2O(l) + 2Na+(aq) + 2Cl–(aq) → 2Cl2(g) + H2(g) + 2Na+(aq) + 2O2–(aq)
D 2H2O(l) + 2Na+(aq) + 2Cl–(aq) → 2Cl2(g) + O2(g) + 2Na+(aq) + 2OH–(aq)

The correct answer is:
2H2O(l) + 2Na+(aq) + 2Cl–(aq) → Cl2(g) + H2(g) + 2Na+(aq) + 2OH–(aq)

Solution:
The overall reaction for the electrolysis of brine solution is given as shown in option A.

Topic: Chemistry, Hydrogen, NEET
What is the overall reaction for the formation of sodium chloride (NaCl) according to the passage?

Options:
A 2 Na(s) + Cl2(g) → 2 Na+ Cl-(s)
B 2 NaCl(s) → 2 Na+(g) + 2 Cl-(g)
C 2 Na(s) → 2 Na+(g) + 2 Cl-(g)
D 2 Na+(g) + Cl-(g) → 2 NaCl(s)

The correct answer is:
2 Na(s) + Cl2(g) → 2 Na+ Cl-(s)

Solution:
The passage provides the overall reaction for the formation of sodium chloride as 2 Na(s) + Cl2(g) → 2 Na+ Cl-(s).

Topic: Chemistry, Redox Reactions, NEET
What is the overall reaction in a mercury cell?

Options:
A Zn(Hg) + HgO(s) → ZnO(s) + Hg(l)
B Zn(Hg) + 2OH- → ZnO(s) + H2O + 2e-
C HgO + H2O + 2e- → Hg(l) + 2OH-
D Zn(s) → Zn2+ + 2e-

The correct answer is:
Zn(Hg) + HgO(s) → ZnO(s) + Hg(l)

Solution:
The overall reaction for a mercury cell as Zn(Hg) + HgO(s) → ZnO(s) + Hg(l).

Topic: Chemistry, Electrochemistry, NEET
What is the overall reaction in Haber's process?

Options:
A N2(g) + 3H2(g) in presence of Fe(s) and Mo(s) gives 2NH3(g)
B 2NH3(g) in presence of Fe(s) and Mo(s) gives N2(g) + 3H2(g)
C Fe(s)Mo(s) N2(g) + 3H2(g) gives 2NH3(g)
D 3H2(g) Fe(s)Mo(s) 2NH3(g) N2(g)

The correct answer is:
N2(g) + 3H2(g) in presence of Fe(s) and Mo(s) gives 2NH3(g)

Solution:
The provided equation represents the overall reaction in Haber's process for the manufacture of ammonia.

Topic: Chemistry, Surface Chemistry, NEET
What is the overall reaction in the fuel cell when hydrogen reacts with oxygen?

Options:
A 2H2(g) + O2(g) → 2H2O(l )
B O2(g) + 2H2O(l) + 4e-→ 4OH-(aq)
C 2H2(g) + 4OH-(aq) → 4H2O(l) + 4e-
D 2H2O(l) + O2(g) → 2H2(g) + 4OH-(aq)

The correct answer is:
2H2(g) + O2(g) → 2H2O(l )

Solution:
The overall reaction in the fuel cell when hydrogen reacts with oxygen "2H2(g) + O2(g) → 2H2O(l )"

Topic: Chemistry, Electrochemistry, NEET
What is the oxidation number of carbon in the cyanide ion (CN–)?

Options:
A +1
B –1
C 0
D +2

The correct answer is:
–1

Solution:
In the cyanide ion (CN–), the oxidation number of carbon is –1.

Topic: Chemistry, Coordination Compounds, NEET
What is the oxidation number of chlorine in the compound Cl2O7?

Options:
A +1
B -1
C +3
D +7

The correct answer is:
+7

Solution:
Correct Option is : (D)
+7

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound Cl2O?

Options:
A +1
B -1
C +6
D +7

The correct answer is:
+1

Solution:
Correct Option is : (A)
+1

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound Cl2?

Options:
A +1
B -1
C 0
D +7

The correct answer is:
0

Solution:
Correct Option is : (C)
0

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound ClO2?

Options:
A +1
B -1
C +4
D +7

The correct answer is:
+4

Solution:
Correct Option is : (C)
+4

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound ClO3?

Options:
A +1
B -1
C +6
D +7

The correct answer is:
+6

Solution:
Correct Option is : (C)
+6

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound KClO2?

Options:
A +1
B -1
C +3
D +5

The correct answer is:
+3

Solution:
Correct Option is : (C)
+3

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound NaCl?

Options:
A +1
B -1
C +6
D +7

The correct answer is:
-1

Solution:
Correct Option is : (B)
-1

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of chlorine in the compound NaClO3?

Options:
A +1
B -1
C +3
D +5

The correct answer is:
+5

Solution:
Correct Option is : (D)
+5

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of Co in [CoBr2(en)2]+?

Options:
A +7
B +3
C +1
D +4

The correct answer is:
+3

Solution:
Correct Option is : (B)
+3

Topic: Chemistry, Coordination Compounds, NEET
What is the oxidation number of Co in [Co(H2O)(CN)(en)2]2+?

Options:
A +1
B +2
C +3
D -3

The correct answer is:
+3

Solution:
Correct Option is : (C)
+3

Topic: Chemistry, Coordination Compounds, NEET
What is the oxidation number of Cr in [Cr(NH3)3Cl3]?

Options:
A +3
B +1
C +5
D +7

The correct answer is:
+3

Solution:
Correct Option is : (A)
+3

Topic: Chemistry, Coordination Compounds, NEET
What is the oxidation number of each sulfur atom in Na2SO4?

Options:
A +1
B -1
C +6
D -6

The correct answer is:
+6

Solution:
Correct Option is : (C)
+6

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of Fe in K3[Fe(CN)6]?

Options:
A +2
B +4
C +9
D +3

The correct answer is:
+3

Solution:
Correct Option is : (D)
+3

Topic: Chemistry, Coordination Compounds, NEET
What is the oxidation number of fluorine in its compounds?

Options:
A +1
B 0
C -1
D +2

The correct answer is:
-1

Solution:
In all its compounds, fluorine has an oxidation number of -1.

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of hydrogen when it is bonded to metals in binary compounds?

Options:
A +1
B 0
C -1
D Varies

The correct answer is:
-1

Solution:
Hydrogen is bonded to metals in binary compounds, its oxidation number is -1.

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of iron (Fe) in Fe₂O₃?

Options:
A +1
B +2
C +3
D +4

The correct answer is:
+3

Solution:
Correct Option is : (C)
+3

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of iron in Fe3+ ions?

Options:
A +1
B +2
C +3
D -1

The correct answer is:
+3

Solution:
Fe3+ ion has an oxidation number of +3.

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of magnesium in Mg2+ ions?

Options:
A +1
B +2
C +3
D -1

The correct answer is:
+2

Solution:
Mg2+ ion has an oxidation number of +2.

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of oxygen in peroxides?

Options:
A -1
B -(1/2)
C 0
D +2

The correct answer is:
-1

Solution:
In peroxides, each oxygen atom is assigned an oxidation number of -1.

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of oxygen in superoxides?

Options:
A -1
B -(1/2)
C 0
D +2

The correct answer is:
-(1/2)

Solution:
In superoxides, each oxygen atom is assigned an oxidation number of -(1/2).

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of phosphorus in the species HPO₃²⁻?

Options:
A +1
B +2
C +3
D +5

The correct answer is:
+3

Solution:
Correct Option is : (C)
+3

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of phosphorus in the species PO43-?

Options:
A -2
B +5
C +3
D -3

The correct answer is:
+5

Solution:
Correct Option is : (B)
+5

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation number of Pt in [PtCl4]2-?

Options:
A +2
B +6
C +1
D +4

The correct answer is:
+2

Solution:
Correct Option is : (A)
+2

Topic: Chemistry, Coordination Compounds, NEET
What is the oxidation product of hydrogen sulfide when it reacts with potassium permanganate?

Options:
A Hydrogen gas
B Sulfur dioxide
C Sulfuric acid
D Sulfur

The correct answer is:
Sulfur

Solution:
Hydrogen sulfide is oxidized by potassium permanganate, and sulfur is precipitated as the oxidation product.

Topic: Chemistry, d and f Block Elements, NEET
What is the oxidation state of alkali metals in their oxides?

Options:
A +2
B -1
C 0
D +1

The correct answer is:
+1

Solution:
In the oxides of alkali metals, the oxidation state of the alkali metal is +1.

Topic: Chemistry, s Block Elements, NEET
What is the oxidation state of alkali metals in their peroxides?

Options:
A +1
B +2
C -1
D -2

The correct answer is:
+1

Solution:
In the peroxides of alkali metals, the oxidation state of the alkali metal is +1.

Topic: Chemistry, s Block Elements, NEET
What is the oxidation state of carbon in CO2?

Options:
A +2
B +4
C -2
D 0

The correct answer is:
+4

Solution:
The passage mentions that the oxidation state of carbon in CO2 is +4.

Topic: Chemistry, Redox Reactions, NEET
What is the oxidation state of Ce when it acts as a strong oxidant?

Options:
A +2
B +3
C +4
D +5

The correct answer is:
+3

Solution:
formation of Ce (IV)is favoured by its noble gas configuration, but it is a strong oxidant reverting to the common +3 state.

Topic: Chemistry, d and f Block Elements, NEET
What is the oxidation state of chlorine in perchloric acid.

Options:
A +5
B -1
C -7
D +7

The correct answer is:
+7

Solution:
HC*lO4 ; 1+x-2×4=0;1+x-8=0
x=8-1=+7 oxidation state.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What is the oxidation state of chromium in chromate and dichromate ions?

Options:
A +2
B +3
C +4
D +6

The correct answer is:
+6

Solution:
The oxidation state of chromium in chromate and dichromate is the same, which is +6.

Topic: Chemistry, d and f Block Elements, NEET
What is the oxidation state of chromium?

Options:
A +1
B +2
C +3
D +4

The correct answer is:
+4

Solution:
Cr(VI), which corresponds to an oxidation state of +4 for chromium.

Topic: Chemistry, d and f Block Elements, NEET
What is the oxidation state of copper?

Options:
A +1
B +2
C +3
D +4

The correct answer is:
+1

Solution:
One of the typical oxidation states of copper is +1.

Topic: Chemistry, d and f Block Elements, NEET
What is the oxidation state of elements in pentahalides?

Options:
A +2
B +3
C +4
D +5

The correct answer is:
+5

Solution:
Pentahalides involve elements in the +5 oxidation state.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What is the oxidation state of hydrogen (H) in the product NaH, 2 Na (s) + H2 (g) → 2 NaH (s)?

Options:
A 0
B +1
C -1
D +2

The correct answer is:
+1

Solution:
In the product, sodium hydride (NaH), hydrogen (H) has an oxidation state of -1 because it has gained an electron during the reaction.

Topic: Chemistry, Redox Reactions, NEET