The mineral containing both magnesium and calcium is
magnesite
calcite
carnallite
dolomite
The mineral containing both magnesium and calcium is
The metal does not give H2 on treatment with dilute HCL is |
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The number of g-molecule of oxygen in 6.02 x 1024CO molecules is |
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The most extensive, commercially useful source of thorium as monazite sand occurs in India at |
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The main active constituent of tea and coffee is |
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The maximum number of isomers for an alkene with molecular formula C4H8 is |
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The hardest form of carbon is |
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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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