Monazite is an ore of
1 Iron
2 Titanium
3 Thorium
4 Zirconium
The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure
Which of the following acids is used for ‘etching glass’? 1 HBrO3 2 H2F2 3 HCIO4 4 HIO4
What are all of the uses for a dynamo?
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
Why we use nhexane inplace of hexane in mobilepase preparation
Names of some plants and trees that sleep during the day
Rusting of iron involves 1 Oxidation 2 Reduction 3 Displacement 4 Decomposition
Heavy water is 1 Tritium oxide 2 Deuterium oxide 3 Rain water 4 None of these
The metallic constituents of hard water are 1 Magnesium, calcium and tin 2 Iron, tin and calcium 3 Calcium, ,magnesium and iron 4 None of these
What is light year?
it is not advisable to sleep under a tree at night becouse trees release
Which of the following is in liquid form at room temperature? 1 Cerium 2 Sodium 3 Francium 4 Lithium