Acids, Bases and Salts (CBSE Class-7 Science): Questions 8 - 15 of 17

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Question number: 8

» Acids, Bases and Salts » Neutralization in Everyday Life » Soil Treatment

MCQ▾

Question

Quick lime or slaked lime added to the soil to make it:

Choices

Choice (4) Response

a.

Basic

b.

Acidic

c.

Neutral

d.

All of the above

Question number: 9

» Acids, Bases and Salts » Acids and Bases » Acids

MCQ▾

Question

Commonly used acids in laboratory are called as:

Choices

Choice (4) Response

a.

Milk of magnesia

b.

Mineral acid

c.

Indicators

d.

All of the above

Question number: 10

» Acids, Bases and Salts » Neutralization in Everyday Life » Indigestion

MCQ▾

Question

Application of neutralisation in daily lives which helps in digestion of food are:

Choices

Choice (4) Response

a.

Brushing teeth

b.

Acids in stomach

c.

None of the above

d.

Question does not provide sufficient data or is vague

Question number: 11

» Acids, Bases and Salts » Natural Indicators Around Us » China Rose as Indicator

MCQ▾

Question

Indicator is made using a hibiscus flower is:

Choices

Choice (4) Response

a.

China rose indicator

b.

Hibiscus indicator

c.

Flower indicator

d.

All of the above

Question number: 12

» Acids, Bases and Salts » Acids and Bases » Acids

MCQ▾

Question

Acids are:

Choices

Choice (4) Response

a.

Turns blue litmus red

b.

Sour to taste

c.

Both a. and b. are correct

d.

None of the above

Question number: 13

» Acids, Bases and Salts » Neutralization in Everyday Life » Ant Bite

MCQ▾

Question

The sting of ants and bees contain:

Choices

Choice (4) Response

a.

Alkali

b.

Formic acid

c.

Hydrochloric acid

d.

Question does not provide sufficient data or is vague

Question number: 14

» Acids, Bases and Salts » Acids and Bases » Acids

MCQ▾

Question

Acids, which are obtained from natural organic matters, are called as:

Choices

Choice (4) Response

a.

Organic acids

b.

Indicators

c.

Mineral acids

d.

None of the above

Question number: 15

» Acids, Bases and Salts » Natural Indicators Around Us » Litmus-a Natural Dye

MCQ▾

Question

Litmus is:

Choices

Choice (4) Response

a.

Extracted from lichens

b.

Indicator

c.

A natural dye

d.

All a. , b. and c. are correct

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