The highest grade of coal whose surface is shining and has
the highest calorific value, is
1 Bituminous
2 Lignite
3 Anthracite
4 Peat
What is the significance of international geo - physical year?
How many astronauts travelled in the challenger?
When was the first rocket launched from thumba?
A substance which changes readily into vapor without heating is called 1 Efflorescent 2 Synthetic 3 Volatile 4 Effervescent
Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray
Water is neither acidic nor alkaline because 1 It cannot accept or donate protons 2 It boils at a high temperature 3 It can dissociate into equal number of hydrogen ions 4 It cannot donate or accept electrons
who is the first president of india ?
2 Answers State Bank Of India SBI,
is there any instrument to convert mechanical energy into electrical energy
Which of the following is in liquid form at room temperature? 1 Cerium 2 Sodium 3 Francium 4 Lithium
What are nebulae?
who is the father of sex?
Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these