‘Saponification involves the hydrolysis of fats and oils by
1 Water
2 Washing soda
3 Stearic acid
4 Caustic soda
‘No two electrons in an atom can have the same set of four quantum numbers’ is 1 Bohr’s law 2 Aufbau principle 3 Newton’s law 4 Pauli’s exclusion principle
When was the administration control of terls enstrusted to physcial research laboratory, ahmedabad?
Atom bomb is based on the principle of 1 Nuclear fusion 2 Nuclear fission 3 Both (a) & (b) 4 None of these
4 Answers ECAT, Group 4 iv, Qnet, UPSC,
The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold
13 Answers FCI, University of Ilorin,
Which of the following is not a chemical reaction? 1 Burning of paper 2 Digestion of food 3 Conversion of water into steam 4 Burning of coal
What is the Botany?
Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these
Explain about the methods of sterilization of DMEM?
Soda-acid fire extinguisher involves the reaction between 1 Sodium hydroxide and nitric acid 2 Sodium bi carbonate and sulphuric acid 3 Sodium sulphate and carbonic acid 4 Sodium carbonate and hydrochloric acid
how is rrb model question paper for science junior engineer gr.II
Why cMadurai is hotter than chennai?