Q. In organic compounds, nitrogen is estimated by
1) Victor-Meyer's method
2) Liebig's method
3) Dumas' method
4) Carius method
Q. Which one out of the following helps in burning?
1) Carbon monoxide
2) Nitrogen
3) Carbon dioxide
4) Oxygen
Q. The hottest part of the gas flame is known as
1) non-luminous zone
2) luminous zone
3) dark zone
4) blue zone
Q. Mineral waxes are rich in
1) Polyethers
2) Carbohydrates
3) Hydrocarbons
4) Polyalcohols
Q. Nucliedes having the same atomic numbers are known as -
1) Isotones
2) Isotopes
3) Isomers
4) Isobars
Q. Which amongst the following does not contain nitrogen element?
1) Superphosphate of lime
2) Urea
3) Indian salpeter
4) Chilli salepeter
Q. Radioactivity is the disintegration of the -
1) Nuclear
2) Ion
3) Molecule
4) Atom
Q. Glass is a -
1) Polymeric mixture
2) Gel
3) Super-cooled liquid
4) Micro-crystalline solid
Q. Ethanol containing 5% water is known as:
1) Absolute alcohol
2) Dilute alcohol
3) Power alcohol
4) Rectified spirit
Q. The percentage of nitrogen present in ammonia sulphate is :
1) 18 %
2) 21 %
3) 25 %
4) 30.5 %
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