(a) Actinides
(b) Borides
(c) Carbides
(d) Hydrides
Answer:
Electromagnetic wave coming out of the nucleus of a natural radioactive atom is
(a) Microwave
(b) Gamma ray
(c) Alpha ray
(d) Beta ray
Answer:
Which of the following is usually not an air pollutant?
(a) Hydrocarbons
(b) Nitrous oxide
(c) Sulphurdioxide
(d) Carbon dioxide
Answer:
The important or of lead is
(a) Galena
(b) Haematite
(c) Cassiterite
(d) Siderite
Answer:
The first ever compound of noble gas was prepared by
(a) Cavendish
(b) Berzelius
(c) Ramsay
(d) Bartlett
Answer:
Which one of the following is produced during the formation of photo-chemical smog?
(a) Ozone
(b) Methane
(c) Hydrocarbons
(d) Nitrogen oxide
Answer:
The gas obtained by radioactive disintergration of radium (226) is
(a) Radon
(b) Krypton
(c) Argon
(d) Neon
Answer:
Schiff's method piria method is used for the estimation of
(a) Sulphur
(b) Halogens
(c) Oxygen
(d) Nitrogen
Answer:
Urotropine is formed by the action of ammonia on
(a) Acetone
(b) Phenol
(c) Acetaldehyde
(d) Formaldehyde
Answer:
Which protein is main constituent of milk?
(a) Keratin
(b) Myosine
(c) Insulin
(d) Casein
Answer: