A substance which changes readily into vapor without heating
is called
1 Efflorescent
2 Synthetic
3 Volatile
4 Effervescent
Which are the wings of sri harikotah range ( shar )?
What is the Organic Evolution ?
The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
Which of the following is used for removing air bubbles from glass during its manufacture? 1 Feldspar 2 Arsenious oxide 3 Potassium carbonate 4 Soda ash
what is the force that helping the earth to revolve by its own.
In a fast breeder reactor, U-238 gets converted to 1 U-235 2 U-237 3 Co-60 4 Plutonium-239
Which of the following reagents gives a silver mirror test when added to aldehydes? 1 Fehling’s solution 2 Tollen’s Reagent 3 Ebaeyer’s Reagent 4 Nessler’s Reagent
‘Saponification involves the hydrolysis of fats and oils by 1 Water 2 Washing soda 3 Stearic acid 4 Caustic soda
WHAT IS THE FUNCTION OF NIKEL IN CHEMICAL REACTION
Who is the oldest cosmonaut?
The hydrogenation of the vegetables oils takes place in the presence of finely divided 1 Aluminium 2 Charcoal 3 Silica 4 Nickel
Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO