Reaction of alcohol, with a carboxylic acid is known as
1 Substitution Reaction
2 Addition reaction
3 Esterification
4 Hydrogenation
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Which of the following is not a neutral oxide? 1 Carbon monoxide 2 Sulphur dioxide 3 Nitric oxide 4 Water
When was the administration control of terls enstrusted to physcial research laboratory, ahmedabad?
Which of the following fibers is least prone to fire? 1 Rayon 2 Nylon 3 Cotton 4 Terycott
Who invented telescope?
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,
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When was the first american rocket launched?
first aid to person affected with electrical shock
which croup is sown on the largest area in india? 2)holandric genes occur exclusiely on? 3)
How many colours the sunlight spectrum has ? 1 Five 2 Three 3 Seven 4 Nine
why is ohms law not followed in long transmisson lines