Q.29 Out of these which nitrogen base is NOT present in DNA?
A) Adenine C) Uracil
B) Guanine D) Thymine
Q.30 Which one of the following is an example of co-polymer?
A) Polyamide C) Polyvinyl acetate
B) Polystyrene D) Polyvinyl chloride
A) Adenine C) Uracil
B) Guanine D) Thymine
Q.30 Which one of the following is an example of co-polymer?
A) Polyamide C) Polyvinyl acetate
B) Polystyrene D) Polyvinyl chloride
Q.31 Which one of the following polymer is called as Nylon 6,6?
A) Polyester C) Polyamide
B) Polyvinyl chloride D) Polyvinyl acetate
Q.32 Which one of the following is an exact composition of a carbohydrates?
A) Carbon and Hydrogen C) Carbon, Hydrogen and Oxygen
B) Carbon and Oxygen D) Hydrogen and Oxygen
Q.33 Which one of the following nitrogen base is NOT present in DNA?
A) Adenine C) Uracil
B) Guanine D) Cytosine
Q.34 In the woody parts of trees, the %age of cellulose is:
A) 50% C) 30%
B) 10% D) 100%
Q.35 In laboratory experiment an unknown compound was added in test tube containing iodine, the
colour became intense blue. What could be the unknown compound?
A) Cellulose C) Ribose
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B) Raffinose D) Starch
Q.36
Indicate the name of above given structure.
A) Nylon 6,6 C) PVA
B) Adipic Acid D) Polyester
A) Polyester C) Polyamide
B) Polyvinyl chloride D) Polyvinyl acetate
Q.32 Which one of the following is an exact composition of a carbohydrates?
A) Carbon and Hydrogen C) Carbon, Hydrogen and Oxygen
B) Carbon and Oxygen D) Hydrogen and Oxygen
Q.33 Which one of the following nitrogen base is NOT present in DNA?
A) Adenine C) Uracil
B) Guanine D) Cytosine
Q.34 In the woody parts of trees, the %age of cellulose is:
A) 50% C) 30%
B) 10% D) 100%
Q.35 In laboratory experiment an unknown compound was added in test tube containing iodine, the
colour became intense blue. What could be the unknown compound?
A) Cellulose C) Ribose
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B) Raffinose D) Starch
Q.36
Indicate the name of above given structure.
A) Nylon 6,6 C) PVA
B) Adipic Acid D) Polyester