NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 455 - 459 of 1258

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Question number: 455

» States of Matter » Gaseous State » Gas Laws - Boyle's Law, Charle's Law, Graham's Law of Diffusion

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MCQ▾

Question

Rate of diffusion of a gas is directly proportional to?

Choices

Choice (4) Response

a.

Square of its molecular mass

b.

its density

c.

its molecular mass

d.

inversely proportional to the square root of its density

Question number: 456

» Atomic Structure » De-Broglie's Relationship

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MCQ▾

Question

A tennis ball have mass is moving with a speed of 62m/s. calculate the wavelength associated with the ball.

Choices

Choice (4) Response

a.

5.6 × 10 - 34m

b.

c.

3.84 × 10 - 36m

d.

Question number: 457

» Hydrogen » Structure, Preparation, Reactions and Uses of Hydrogen Peroxide

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Question

Which of the following condition is suitable for the reduction of potassium ferri cyanide with hydrogen peroxide?

Choices

Choice (4) Response

a.

non-polar medium

b.

neutral medium

c.

alkaline medium

d.

acidic medium

Question number: 458

» Hydrogen » Physical and Chemical Properties of Water

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Question

The exhausted permutit is generally regenerated by percolating through it a solution of?

Choices

Choice (4) Response

a.

Sodium chloride

b.

Barium chloride

c.

Magnesium chloride

d.

Calcium chloride

Question number: 459

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

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MCQ▾

Question

Two elements X and Y have atomic weights of 14 and 16. They form a series of compounds A, B, C, D and E in which the same amount of element X, Y is present in the ratio 1: 2: 3: 4: 5. If the compound A has 28 parts by weight of X and 16 parts by weight of Y, then the compound of C will have 28 parts weight of X and

Choices

Choice (4) Response

a.

48 parts by weight of Y

b.

80 parts by weight of Y

c.

64 parts by weight of Y

d.

32 parts by weight of Y