Products of hydrolysis of lactose are -

1. β-D-galactose and β-D-glucose.

2. α-D-galactose and α-D-glucose.

3. α-D-galactose and β-D-maltose.

4. β-D-galactose and β-D-fructose.

Subtopic:  Carbohydrates - Classification & D-L configuration |
 71%
From NCERT
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The product of D-glucose with HI is -

1. Neo-pentane 2. n-Hexane
3. Cyclohexane 4. Glucaric acid
Subtopic:  Carbohydrates - Classification & D-L configuration |
 90%
From NCERT
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The fat-soluble vitamin(s) is/are-

1. Vitamin A 2. Vitamin B
3. Vitamin E 4. Both 1 and 3
Subtopic:  Vitamins, Hormones & Enzymes |
 86%
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Carbohydrates are useful for plants-

1. To build cell membrane.

2. To support structure.

3. To serve as a storage molecule.

4. To help in the transport mechanism.

Subtopic:  Carbohydrates - Classification & D-L configuration |
 72%
From NCERT
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The main component present in starch and glycogen is:

1. Amylose 2. Glycose
3. Amylopectin 4. Cellulose
Subtopic:  Polysaccharides & their Importance |
 58%
From NCERT
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D-Glucose  \(\xrightarrow[]{\textbf{?}}\) Saccharic acid

The oxidizing reagent used for this conversion is -

1. HI 2. Bromine water
3. HNO3  4. H2SO4
Subtopic:  Polysaccharides & their Importance |
 69%
From NCERT
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The incorrect statement about nucleic acid is:

1. It is responsible for heredity.
2. It is responsible for protein synthesis in a cell.
3. It is a constituent of the chromosome.
4. It is responsible for the transmission of chemical signals.
Subtopic:   DNA, RNA & Metal Ions |
 79%
From NCERT
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The correct statement about RNA is :

1. The helical structure of RNA is mostly single-stranded .
2. It has deoxyribose sugar.
3. It is the chemical basis of heredity.
4. It contains thymine (T)

Subtopic:   DNA, RNA & Metal Ions |
 77%
From NCERT
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The essential amino acid is/are-
1. Valine
2. Alanine
3. Serine
4. All of the above

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 66%
From NCERT
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The enzyme used for the above conversion is:
\(C_{12}H_{22}O_{11}\ \xrightarrow[H_2O]{?}\ \text{2 mole of glucose}\)

1. Amylase 2. Lactase
3. Maltase 4. Peptidase
Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 69%
From NCERT
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