General Science Class 10

The carbohydrates which contain the aldehyde group are called?

1. Saccharides
2. Ketoses
3. Pentoses
4. Aldoses

Amino acids are building blocks of :

1. Nucleic acids
2. Protein
3. Vitamins
4. Lipid

Which one of the following is a polysaccharide?

1. Fructose
2. Maltose
3. Starch
4. N.O.T

Lactose is :

1. Grape sugar
2. Honey sugar
3. Milk sugar
4. Cane sugar

What is true about a peptide?

1. It is a protein
2. It is an anhydride of carboxylic acids
3. It is an anhydride of an amine
4. It is a polyamide

Fats are solids at :

1. Ordinary room temperature
2. High temperature
3. Higher than 50°C temperature
4. N.O.T

Cotton contains ______ cellulose.

1. 30%
2. 65%
3. 85%
4. 95%

Second highest layer of Earth's atmosphere is :

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

Aeroplanes fly in :

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere

Atmospheric pressure decreases with the :

1. Increase in longitude
2. Decrease in altitude
3. Increase in altitude
4. Increase in latitude