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Urea (H2NCONH2) is manufactured by passi...

Urea `(H_2NCONH_2)` is manufactured by passing `CO_2(g)` through ammonia solution followed by crystallization. `CO_2` for the above reaction is prepared by combustion of hydrocarbons. If combustion of 236kg of a saturated hydrocarbon `(C_n H_(2n+2))` produces as much `CO_2` as required for production of `999.6kg` urea then molecular formula of hydrocarbon is :

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