The hardest form of carbon is
coke
graphite
diamond
charcoal
Additional Questions
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The most important ore of aluminium is |
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The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of |
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The number of electrons presents in H+ is |
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The hottest part of the gas flame is known as |
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The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is |
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The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is |
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The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? |
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The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3 |
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The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in |
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The National Chemical Laboratory is situated in |
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