In fireworks, the green flame is produced because of
1 Mercury
2 Sodium
3 Potassium
4 Barium
Arihant was commissioned on which day?
Which of the following is the lightest gas? 1 Nitrogen 2 Hydrogen 3 Ammonia 4 Carbon dioxide
Which of the following is not a compound? 1 Silica 2 Red lead 3 Slaked lime 4 Black lead
Diamond is harder than graphite because of 1 Difference of layers of atoms 2 Tetrahedral structure of diamond 3 Difference of crystalline structures 4 None of these
a private address 172.116.0.0 will borrow ? bits from the HOST to give one 120 subnets - range = ?
What are soaps? 1 Salts of silicates 2 Esters of heavy fatty acids 3 Sodium or potassium salts of heavier fatty acids 4 Mixture of glycerol and alcohols
The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
The age of most ancient geological formations is estimated by 1 Potassium-argon method 2 Ra-Si method 3 C14method 4 Uranium-lead method
any one who has interviewed at noida for SBI clerk i have my interview call on 23.10.2008
‘Saponification involves the hydrolysis of fats and oils by 1 Water 2 Washing soda 3 Stearic acid 4 Caustic soda
What are vitamins ? describe different kinds of vitamins
What is the Protoplasm ?