General Science Class 10

Which of the following is an alcohol?

1. CH3-CHO
2. CH3-CH2-O-CH3
3. CH3-OH
4. HCOOH

Which of the following is a saturated hydrocarbon?

1. CH3-CH=CH2
2. CH3-CH2-CH3
3. CH3-C=CH
4. CH2=CH-C=CH

The prefix ‘hept’ stands for the ____ carbon atoms.

1. 2
2. 5
3. 7
4. 9

The functional group -COOH is used for :

1. Alkynes
2. Alcohols
3. Phenols
4. Carboxylic acids

Polyethene is :

1. Oil
2. Paper
3. Plastic
4. Wood

Acetic acid is obtained from :

1. Banana
2. Dates
3. Garlic
4. Vinegar

Alkenes :

1. Show the same general formula as alkynes
2. Have carbon-carbon triple bond
3. Have carbon-carbon double bond
4. Are saturated hydrocarbons

CH3-CH2- is _____ radical.

1. Methyl
2. Ethyl
3. n-propyl
4. Isopropyl

Glucose is :

1. Vitamin
2. Protein
3. Carbohydrate
4. Lipid

______ encodes genetic information.

1. RNA
2. DNA
3. Progesterone
4. Cholesterol