Which variety of glass is heat resistant?
1 Hard glass
2 Flint glass
3 Pyrex glass
4 Bottle glass
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Answer / guest
(3) Pyrex glass
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Answer / roshan
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Which synthetic fiber possesses a ‘drip-dry’ property? 1 Rayon 2 Nylon 3 Silk 4 Terylene
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
Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane
Which was the international geo - physical year?
why nitrogen is about 70%(i.e.)highest percentage in environment
Who discovered radio telescope?
Which is india’s primary nuclear facility?
In an atomic nucleus, neutrons and protons are held together by 1 Gravitational forces 2 Magnetic forces 3 Exchange force 4 Coulombic forces
Which scientists gave detailed information about nebula?
Rubber is coagulated from latex by adding 1 Hydrochloric acid 2 Acetic acid 3 Sulphuric acid 4 Carbonic acid
What is the Cellular Structure ?
What is the Respiration ?