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The mineral containing both magnesium and calcium is

magnesite
calcite
carnallite
dolomite
Additional Questions

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 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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