Samacheer Kalvi 10th Science Carbon and Its Compounds Questions - 1

Question: 1

TFM in soaps represents _____ content in soap.

(A) Fatty acid

(B) Carbohydrate

(C) Mineral

(D) Vitamin

Ans: A

Fatty acid

Question: 2

Which of the following are used as anaesthetics?

(A) Ethers

(B) Esters

(C) Aldehydes

(D) Carboxylic acids

Ans: A

Ethers

Question: 3

Rectified spirit is an aqueous solution which contains about ____ of ethanol

(A) 45.5%

(B) 55.5%

(C) 75.5%

(D) 95.5%

Ans: D

95.5%

Question: 4

Which of the following statements is wrong about detergents?

(A) The ionic part in a detergent is – SO3-Na+

(B) It is effective even in hard water

(C) It is sodium salts of sulphonic acids

(D) It is a sodium salt of long chain fatty acids

Ans: D

It is a sodium salt of long chain fatty acids

Question: 5

The secondary suffix used in IUPAC nomenclature of an aldehyde is

(A) – al

(B) – one

(C) – oic acid

(D) – ol

Ans: A

– al

Question: 6

The molecular formula of an open chain organic compound is C3H6. The class of the compound is

(A) alcohol

(B) alkyne

(C) alkene

(D) alkane

Ans: C

alkene