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CBSE Class 10 Answered

1.Which of the following is compound (A)? 2.Which of the following is (D)? 3.Which of the following acid is formed if (C) reacts with H2O?
Asked by amandeep singh chahal | 19 Oct, 2013, 07:13: AM
answered-by-expert Expert Answer

MgCO3      ?    MgO   +   CO2

    A                     B              C

 

MgO + H2O   ?   Mg(OH)2

    B  

  3Mg(OH)2  +6HCl   ? 3MgCl2.6H2O

                          D                    E

 

CO2 + Lime water    ? white ppt

 C

Solution:

  1. Compound A = MgCO3
  2. Compound D = HCl
  3. CO2 + H2O         H2CO3 (Carbonic acid)
Answered by Karishma Kapoor | 28 Oct, 2013, 12:20: PM

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