NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 719 - 725 of 1258

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Question number: 719

» Atomic Structure » Bohr Model of Hydrogen Atom

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MCQ▾

Question

The total energy of electron of H- atom in a second quantum state is . The total energy of atom in the third quantum state is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 720

» Biomolecules » Nucleic Acids

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MCQ▾

Question

Which of the following pyrimidine derivaties are leave barn?

Choices

Choice (4) Response

a.

Thymine

b.

Cystosine

c.

Uracil

d.

All a. , b. and c. are correct

Question number: 721

» Basic Concepts in Chemistry » Concept of Atom, Molecule, Element and Compound

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MCQ▾

Question

A symbol not only represents the name of the element but also its?

Choices

Choice (4) Response

a.

Atomicity

b.

Atomic mass

c.

Atomic volume

d.

Atomic number

Question number: 722

» Basic Concepts in Chemistry » Laws of Chemical Combination

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MCQ▾

Question

The law of constant proportions was enunciated by?

Choices

Choice (4) Response

a.

Dalton

b.

Proust

c.

Avogadro

d.

Berthelot

Question number: 723

» Hydrocarbons » Alkynes » Addition of Hydrogen, Halogens, Water and Hydrogen Halides

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MCQ▾

Question

Which is the most suitable reagent among the following to distinguish compound (3) from the rest of the compounds?

(1)

(2)

(3)

(4)

Choices

Choice (4) Response

a.

Tollen’s reagent

b.

Br2 in CCl4

c.

Br2 in CH3COOH

d.

AlkalineKMnO4

Question number: 724

» Biomolecules » Proteins

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MCQ▾

Question

Identify which is zwitter ion

Identify Which is Zwitter Ion

Identify which is zwitter ion

In the above reaction what is zwitter ion?

Choices

Choice (4) Response

a.

C

b.

A and B

c.

A

d.

B

Question number: 725

» Organic Compounds with Oxygen » Alcohols » Inroduction

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MCQ▾

Question

Methylated spirit is

Choices

Choice (4) Response

a.

Methanol

b.

Methanamide

c.

Methanol + ethanol

d.

Methanoic acid