The essential mineral for plants other than ammonia, is
'Liquids' flow
The common products in which ammonia is used, are
In mixture, the particles of iron and sulphur are
When the liquid is cooled down, it changes into solid, this process is known as
Plastic was invented by
The compound which is formed by heating iron and sulphur, is known as
To make high temperature for formation of ammonia, the substance which is used, is
One or more new substances are formed due to
The first thing that happens during chemical reaction is that
At first slightly different form of 'polythene' was discovered in
'Photosynthesis' is a
Particles are close together in
No new substance is formed during
The density of liquids is
The world's first successful plastic was made in
Physical change only effects the
A component without which fertilizer is incomplete, is
A component which can stick to the magnet is
The color of solid iron is
Alteration of material without changing its chemical make-up is known as
The gases that required to manufacture 'PVC' are
Nitrogen is obtained from
The exothermic reaction of two elements, iron and sulfur, form the compound,
'Ammonia' is an important component of
The name of the chemist who started plastic industry, is
The water melts and freezes at
The force of attraction between particles of gases is
The least kinetic energy is found in
Plastics are made up of
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