NEET Chemistry: Questions 457 - 461 of 1110

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Question number: 457

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

neutral medium

b.

alkaline medium

c.

non-polar medium

d.

acidic medium

Question number: 458

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Magnesium chloride

b.

Sodium chloride

c.

Calcium chloride

d.

Barium chloride

Question number: 459

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

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.

80 parts by weight of Y

b.

32 parts by weight of Y

c.

48 parts by weight of Y

d.

64 parts by weight of Y

Question number: 460

» Hydrogen » Isotopes

MCQ▾

Question

If an isotope of hydrogen has two neutrons in its atom. Its atomic mass will be?

Choices

Choice (4) Response

a.

4

b.

2

c.

3

d.

1

Question number: 461

» Atomic Structure » Heisenberg Uncertainty Principle

MCQ▾

Question

Choose the correct option?

Choices

Choice (4) Response

a.

Shapes of orbitals are functional representation of mathematical solutions of Schrodinger equations. They do not represent any picture of electric charge or matter.

b.

Smaller the wavelength of the electron wave more is the resolving power of the electron microscope.

c.

Uncertainty in measurement is not due to lack of any experimental technique but due to nature of subatomic particle itself.

d.

All a. , b. and c. are correct

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