
The one thing that is common to all fossil fuels is that they:
Were originally formed in marine environment
Contain carbon
Have undergone the same set of geological processes during their formation
Represent the remains of one living organisms

Important Questions on Chemistry

Which of the following non-metal conducts electricity?
(A) Lead
(B) Wood charcoal
(C) Coal
(D) Diamond

Which of the given below atomic numbers of elements resembles the chemical properties of Magnesium?






How many moles of sulphuric acid are present in 25 gm?

Which of the following is known as the 'King of Chemicals'?

Catalyst is a substance that_____:



The hormone produced in plants due to which the stem bends towards sunlight is _____:



I. Carbon compounds linked by the only single bond are called saturated compounds.
II. Carbon Compounds having double or triple bonds are called unsaturated compounds.
III. Saturated carbon compounds are more reactive than unsaturated carbon compounds.



Which of the following is not a bleaching agent?
1. Sodium hypochlorite
2. Calcium hypochlorite
3. Hydrogen peroxide
4. Hydrogen sulphide

