NEET Chemistry: Questions 314 - 320 of 677

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Passage

Read the passage given below and answer the questions that follows :

The oxidation state of the elements in the pure state = 0. The equivalent wt. of the element

E = Atomicwtoftheelementx where x = valency

The equivalent wt. of any compound = sum of the equivalent wt. of component elements or ions.

By using this relation we can calculate the equivalent wt. of any acidic and basic oxide.

Question number: 314 (2 of 2 Based on Passage) Show Passage

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

Equiv. wt. of Fe2O3 is -

Choices

Choice (4) Response
a.

33

b.

26.5

c.

38.3

d.

46.34

Question number: 315

» P-Block Elements Group 13 to 18 » Group 17 » Hydrochloric Acid

MCQ▾

Question

Which of the following acid can be used to prepare hydrochloric acid on heating?

Choices

Choice (4) Response
a.

H2SO5

b.

H2SO3

c.

H2SO4

d.

H2SO2

Question number: 316

» P-Block Elements Group 13 to 18 » Group 17 » Interhalogen Compounds

MCQ▾

Question

Which one of the following inter halogen compound is thermally more stable?

Choices

Choice (4) Response
a.

ICl

b.

BrF

c.

ClF

d.

IBr

Question number: 317

» P-Block Elements Group 13 to 18 » Group 17 » Hydrogen Halides

MCQ▾

Question

Except H2F2, other hydrogen halides are gases why?

Choices

Choice (4) Response
a.

Due to covalent nature

b.

Due to hydrogen bonds

c.

Due to HF is weak acid

d. None of the above

Question number: 318

» Atomic Structure » Heisenberg Uncertainty Principle

MCQ▾

Question

The uncertainty in position and velocity of a particle are 1010 m and 5.27 x 1024 ms-1 respectively. Calculate the mass of the particle is (h = 6.625 x 1034 Js)

Choices

Choice (4) Response
a.

0.99 g

b.

0.099 kg

c.

0.92 kg

d. All of the above

Question number: 319

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

In acting as a reducing agent, a piece of metal M weighing 16 grams gives up 2.25×1023 electrons. What is the equivalent weight of the metal?

Choices

Choice (4) Response
a.

42.83

b.

32

c.

83.32

d.

21.33

Question number: 320

» P-Block Elements Group 13 to 18 » Group 16 » Introduction

MCQ▾

Question

An acidified potassium dichromate paper turns green when exposed to SO2, due to the formation of which compound?

Choices

Choice (4) Response
a.

Cr2(SO4)3

b.

Cr(SO4)3

c.

Cr3(SO4)3

d.

Cr(SO4)2

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