The most important ore of Aluminium is
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The colour of Emerald is
The hardest substance available on earth is
The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
The metallic constituents of hard water are
The metal that is present in Photo Films is
The speed of light with the rise in the temperature of the medium
Cell membrane is
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Water has maximum density at
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Glass is made from the mixture of
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The recent atomic weight scale is based on
Liquefied Petroleum gas (LPG) consists of mainly
Pollination by birds is called
Old-written material, which cannot be read easily can be read by
When a gas is turned into a liquid, the process is called
The formula of Plaster of Paris is
The fastest acting enzyme in the biological kingdom is
Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
What is the unit for measuring the pitch or frequency of sound ?
Permanent hardness of water can be removed by adding
Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
The location and energy of an electron in an atom can be specified by
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