NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 776 - 780 of 1258

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Question number: 776

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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MCQ▾

Question

Which vitriol (hydrated zinc sulphate) is isomorphous with White vitriol contains zinc and of water of crystallization. Find atomic mass of zinc?

Choices

Choice (4) Response

a.

66.23

b.

62.20

c.

65.87

d.

60.22

Question number: 777

» Atomic Structure » De-Broglie's Relationship

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MCQ▾

Question

Calculate the wavelength, if the kinetic energy of an electron is

mass of electron

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 778

» Atomic Structure » Spin Quantum Number

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MCQ▾

Question

The two electron occupying the same orbital are distinguished by?

Choices

Choice (4) Response

a.

Azimuthal quantum number

b.

Principal quantum number

c.

Spin quantum number

d.

Magnetic quantum number

Question number: 779

» Basic Concepts in Chemistry » Mole Concept

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MCQ▾

Question

The molar ratio of in a mixture of having equal number of sulphate ions in both ferrous and ferric sulphate is?

Choices

Choice (4) Response

a.

2: 3

b.

3: 2

c.

1: 2

d.

All of the above

Question number: 780

» Equilibrium » Ionic Equilibrium » Ionization Constants

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Appeared in Year: 2016

MCQ▾

Question

Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because

Choices

Choice (4) Response

a.

Zinc is lighter than iron

b.

Zinc has lower melting point than iron

c.

Zinc has higher negative electrode potential than iron

d.

Zinc has lower negative electrode potential than iron