The valency of nitrogen in N2 molecule is _____ .

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For which of the following molecules significant $\mu \neq 0 ?$

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तेल एवं वसायुक्त खाद्य पदार्थों को नाइट्रोजन से प्रभावित क्यों किया जाता है?

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An electron in a hydrogen atom makes a transition from n1 to n2 where n1 and n2 are principal quantum numbers of the two states.

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100 mL of air containing only oxygen and nitrogen is taken in a jar over water. NO is slowly passed till more brown fumes appear in the gas jar. It is found that 42 mL of NO is required. The percentage nitrogen in the air would be:

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1.0 g of hydrogen is heated to combine with 80.0 g of bromine and 1.0 g of calcium (valency =2) combines with 4.0 g of bromine.

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The valency of nitrogen in N2 molecule is _____ .

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