Banking Chemistry General Concepts of Chemistry Question Bank General Concepts of Chemistry

  • question_answer
    Which one is a combination reaction?

    A)  Formation of a mixture of carbon monoxide and hydrogen. When steam is passed over red hot iron.

    B)  Reaction of water with sodium metal to form sodium hydroxide and hydrogen.

    C)  \[Ca{{(OH)}_{2}}+N{{a}_{2}}C{{O}_{3}}\to 2NaOH+CaC{{O}_{3}}\downarrow \]

    D)  Preparation of stannic chloride (Tin (iv) chloride) by passing chlorine gas into molten tin (Sn).  

    Correct Answer: D

    Solution :

     \[Sn+2C{{l}_{2}}\to SnC{{l}_{4}}\].


You need to login to perform this action.
You will be redirected in 3 sec spinner