Question Detail

Natural rubber is a polymer derived from ?

ethylene
propylene
isoprene
butadiene

Answer: Option C

Similar Questions :

1. Alloys made with mercury as one metal are called ?

mixtures
emulsions
solders
amalgams

Answer: Option D

2. Which is used in preparation of dynamite ?

glycerol
ethyl alcohol
methyl alcohol
glycol

Answer: Option A

3. Mass number of a nucleus is :

the sum of the number of protons and neutrons present in the nucleus
always more than the atomic weight
always less than its atomic number
None of above

Answer: Option A

4. Which acid is present in lemon ?

marlic acid
citric acid
lactic acid
tartaric acid

Answer: Option B

Explanation:

citric acid is present in lemon.

5. How many different oxides are formed by nitrogen ?

two
three
four
five

Answer: Option A

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