NEET Chemistry: Questions 272 - 278 of 1110

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Question number: 272

» P-Block Elements Group 13 to 18 » Group 16 » Allotropic Forms of Sulphur

MCQ▾

Question

Water is liquid while H2S is a gas, why?

Choices

Choice (4) Response

a.

The oxygen is more electronegative than Sulphur

b.

H-S bond is weaker than H-O bond

c.

Hydrogen bonding present in H2O

d.

Both a. and c. are correct

Question number: 273

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

The equivalent wt. of a metal is double that of oxygen. How many times is weight of its oxide greater than the wt. of metal?

Choices

Choice (4) Response

a.

1.5

b.

0.25

c.

3

d.

2

Question number: 274

» Atomic Structure » Hund's Rule

MCQ▾

Question

For a given electron configuration, the term with maximum multiplicity has the lowest energy. This rule was proposed by-

Choices

Choice (4) Response

a.

Aufbau

b.

Dalton

c.

Hund

d.

Pauli

Question number: 275

» P-Block Elements Group 13 to 18 » Group 16 » Structures of Oxoacids of Sulphur

MCQ▾

Question

What is the formula of Marshall’s acid?

Choices

Choice (4) Response

a.

H2S2O3

b.

H2S2O8

c.

H2SO5

d.

H2SO3

Question number: 276

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

10 ml of (N/2) HCL , 30 ml of ( N10 ) HNO3 and 75 ml of ( N5 ) HNO3 are mixed; the normality of H+ in the resulting solution is-

Choices

Choice (4) Response

a.

0.2

b.

0.25

c.

0.5

d.

0.1

Question number: 277

» P-Block Elements Group 13 to 18 » Group 18 » Structures of Fluorides

MCQ▾

Question

Which of the following compound is cannot be formed by xenon?

Choices

Choice (4) Response

a.

XeF

b.

XeF5

c.

XeF3

d.

All a. , b. and c. are correct

Question number: 278

» Basic Concepts in Chemistry » Mole Concept

Assertion-Reason▾

Assertion (Ꭺ)

Equivalent weight of Cu in CuO is 31.8 and in Cu2O is 63.6.

Reason (Ꭱ)

Equivalent weight of an element

AtomicweightoftheelementValencyoftheelement

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

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