Chemistry-Acid Bases and Salt [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 1 - 5 of 8

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Question 1

Question MCQ▾

Boyle suggested some properties of acid; choose the correct set of them.

Choices

Choice (4)Response

a.

Sour taste, corrosive change litmus from blue to red

b.

Sour taste, slippery change litmus from blue to red

c.

Sour taste, corrosive change litmus from red to blue

d.

Sweet taste, slippery change litmus from blue to red

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Question 2

Question MCQ▾

Which of the following substances is essential solute in saline water?

Choices

Choice (4)Response

a.

Acetic acid

b.

Salicylic acid

c.

Sodium chloride

d.

Ammonium chloride

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Question 3

Question MCQ▾

Consider the following statements

I. An amphoteric substance can act as both an acid and a base.

II. Bases are sometimes called alkalis.

Which of the statements given above is/are correct?

Choices

Choice (4)Response

a.

Only II

b.

I and II

c.

Only I

d.

Question does not provide sufficient data or is vague

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Question 4

Question MCQ▾

Observe the given figures and choose the correct alternative.

Three Beakers Containing Different Liquid

Choices

Choice (4)Response

a.

pH of B > pH of A and C

b.

pH of A B and C are equal

c.

pH of A > pH of Band C

d.

pH of C > pH of A and B

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Question 5

Question MCQ▾

Which of the following fact is not true about sodium hydrogen carbonate?

Choices

Choice (4)Response

a.

Its white crystals are sparingly soluble in water

b.

It is used as a raising agent in making cakes

c.

It is also used in making ‘Borax’

d.

It is commonly known as baking soda

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