List of top Science Questions

Which of the following groups form the Dobereiner’s triad?
Which of the following compounds can be used as fuel?
Which of the following is liquid at room temperature?
Benzene reacts with nitric acid in the presence of concentrated sulphuric acid to form
What will be the resistance of the wire when its length increases?
Which of the following is the main component of biogas?
Tincture iodine solution is prepared in
The electrical resistivity of silver at 20$^\circ$C is
Which gas is not released when fossil fuels are burnt?
From which of the following does the induced current get direction?
The frequency of alternating electric current produced in India is
Which disease may primarily be caused in humans by ultraviolet (UV) rays of the Sun?
The correct food chain is
The action of an electric motor is based on
Waste can be managed by which of the following?
Which quantity is electric potential?
The substances which get decomposed by biological process are
Which substance cannot be decomposed in the environment?
At what stage of foetus does safe abortion occur?
Which of the following is an artificial ecosystem?
The hormone that controls the symptoms of puberty in adolescents is
Differentiate between metals and non-metals on the basis of physical and chemical properties.
What is called absolute refractive index ?

The changes that occur during adolescence are called
 

Explain recycling of waste materials with examples.