NCERT Class 7 Science-Acids, Bases and Salts[Acids and Bases] [NCERT Based General Studies (GS)]: Questions 1 - 7 of 7

Access detailed explanations (illustrated with images and videos) to 4883 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. 3 Year Validity- Access Unlimited Times on Unlimited Devices.

View Sample Explanation or View Features.

Rs. 750.00 -OR-

How to register? Already Subscribed?

Question 1

Question MCQ▾

Bases are:

Choices

Choice (4)Response

a.

Dissociated in aqueous solution to give hydroxide ion

b.

Soapy to touch

c.

Bitter in taste

d.

All a., b. and c. are correct

Edit

Question 2

Question MCQ▾

Substances, which are used to test whether a substance is acidic or basic, are called as:

Choices

Choice (4)Response

a.

Cation

b.

Litmus

c.

Anions

d.

Indicators

Edit

Question 3

Question MCQ▾

Turmeric, litmus, China rose petals are:

Choices

Choice (4)Response

a.

Natural indicators

b.

Indicators

c.

Chemical indicators

d.

None of the above

Edit

Question 4

Question MCQ▾

Commonly used acids in laboratory are called as:

Choices

Choice (4)Response

a.

Indicators

b.

Milk of magnesia

c.

Mineral acid

d.

Question does not provide sufficient data or is vague

Edit

Question 5

Question MCQ▾

Acids are:

Choices

Choice (4)Response

a.

Turns blue litmus red

b.

Sour to taste

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Edit

Question 6

Question MCQ▾

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

Choices

Choice (4)Response

a.

Mineral acids

b.

Organic acids

c.

Indicators

d.

Question does not provide sufficient data or is vague

Edit

Question 7

Question MCQ▾

Bases that dissolve in water are called as:

Choices

Choice (4)Response

a.

Alkalis

b.

Strong bases

c.

Weak bases

d.

Question does not provide sufficient data or is vague

Edit