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JEE Main levelSingle correct optionDifficulty 2 of 3sb014

Lithium nitrate decomposes on strong heating according to a balanced equation giving the oxide. How many moles of gaseous products are obtained per mole of $LiNO X_{3}$ decomposed?

A1.25
B0.50
C1.00
D1.50

Answer: A

Lithium nitrate behaves unlike the other alkali nitrates:

4 LiNO X_{3} 2 Li X_{2} O + 4 NO X_{2} + O X_{2}

. Four moles of

LiNO X_{3}

give

4 + 1 = 5

moles of gas, so each mole gives

5/4 = 1.25

mol.

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