Which of the following is a good nuclear fuel?
1 Uranium-238
2 Neptunium-239
3 Thorium-236
4 Plutonium-239
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In laundry soaps, a material called ‘filler’ is used. Which of the following is a ‘filler? 1 Talc 2 Sodium silicate 3 Soda ash 4 Sodium phosphate
Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of 1 Nitrates 2 Zeolites 3 Sulphontes 4 None of these
What are cosmic rays?
why we are not measure the turbidity in mg/lit?
How long can arihant stay underwater?
Which of the following acids is used for ‘etching glass’? 1 HBrO3 2 H2F2 3 HCIO4 4 HIO4
When was the first american rocket launched?
Potassium permanganate is used for purifying drinking water, because 1 It is dissolves the impurities of water 2 It is a sterilizing agent 3 It is an oxidizing agent 4 It is a reducing agent
A super conductor is characterized by 1 Zero permeability 2 Low permeability 3 High permeability 4 Infinite permeability
which country is known as thunderbolt in the world
The process by which an organic compound breaks down into simpler compounds on heating to high temperature is known as 1 Armatisation 2 Polymerization 3 Pyrolysis 4 Reduction
What is the Nutrition ?