Prelims

Which one of the following types of micro-organisms is most widely used in industries ?

A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?

Consider the following statements about acetylene : I. It is used in welding industry. II. It is raw material for preparing plastics. III. It is easily obtained by mixing silicon carbide and water. Of these statements :

Match List I with List II and select the correct answer by using the codes given below the lists

Haemophilia is a genetic disorder which leads to

Consumption of fish is considered to be healthy when compared to flesh of other animals because fish contains

The correct sequence of different layers of the atmosphere from the surface of the Earth upwards is

A fuse is used in main electric supply as a safety device. Which one of the following statements about the fuse is correct?

Consider the following statements regarding asteroids : I. Asteroids are rocky debris of varying sizes orbiting the Sun. II. Most of the asteroids are small but some have diameter as large as 1000 km. III. The orbit of asteroids lies between the orbits of Jupiter and Saturn. Of these statements :

Which one of the following metals does not form amalgams ?