The most suitable material for the preparation of handles of
cooking utensils is
(a) Polythene (c) Nylon
(b) PVC (d) Bakelite
The material similar to silk in appearance is
(a) Nylon (c) Polyester
(b) Rayon (d) Terylene
Which is a thermosetting plastic?
(a) Melamine (c) PVC
(b) Polythene (d) Nylon
. Polycot is obtained by mixing
(a) nylon and wool (c) nylon and cotton
(b) polyester and wool (d) polyester and cotton
Pick the synthetic fibre out of the following?
(a) Cotton (c) Jute
(b) Nylon (d) Wool
Pick the synthetic fibre out of the following?
(a) Cotton (c) Jute
(b) Nylon (d) Wool
How can we prevent the following diseases?
(a) Cholera
(b) Typhoid
(c) Hepatitis A
Give reasons for the following.
(a) Fresh milk is boiled before consumption while processed milk
stored in packets can be consumed without boiling.
(b) Raw vegetables and fruits are kept in refrigerators whereas
jams and pickles can be kept outside.
(c) Farmers prefer to grow beans and peas in nitrogen deficient
soils.
(d) Mosquitoes can be controlled by preventing stagnation of
water though they do not live in water. Why?
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