NEET Chemistry: Questions 102 - 108 of 677

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Question number: 102

» Redox Reactions & Electrochemistry » Relation Between Cell Potential and Gibbs' Energy Change

MCQ▾

Question

The cell reaction is spontaneous and serves as a source of electrical energy if?

Choices

Choice (4) Response

a.

Zero

b.

Negative

c.

Positive

d.

variable

Question number: 103

» Redox Reactions & Electrochemistry » Nernst Equation and Its Applications

MCQ▾

Question

The oxidation potential of hydrogen electrode at PH=10 and PH=1 atm?

Choices

Choice (4) Response

a.

0.59V

b.

0.51V

c.

0.059 V

d.

0.09V

Question number: 104

» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide

MCQ▾

Question

In the following reaction, 6NaOH+4SA+2Na2S+3H2O , What is A?

Choices

Choice (4) Response

a.

Na2S

b.

Na2SO3

c.

Na2S2O3

d.

Na2SO4

Question number: 105

» S-Block Elements Group 1 and 2 » Industrial Uses » Cement

MCQ▾

Question

The cement used in dental fillings is called?

Choices

Choice (4) Response

a.

Sorel cement

b.

Hard cement

c.

Magnesia alva

d.

Quick lime

Question number: 106

» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide

MCQ▾

Question

Which of the following sodium compound will give phosphine gas when reacted with yellow phosphorus?

Choices

Choice (4) Response

a.

NaOH

b.

Na2S

c.

NaCl

d.

Na2CO3

Question number: 107

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which of the following compounds of alkali metals decompose on heating?

Choices

Choice (4) Response

a.

KNO3

b.

Na2SO4

c.

K2CO3

d.

Na2CO3

Question number: 108

» S-Block Elements Group 1 and 2 » Anomalous Properties of the First Element of Each Group

MCQ▾

Question

Lithium shows anomalous property when compared to other alkali metals, why?

Choices

Choice (4) Response

a.

Greater hardness of Li +3

b.

Hydration of Li +3

c.

Small size of lithium atom and Li +

d.

All of the above

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