30. NCERT Exemplar III

2 m.

Choose all possible answers:

1. Which of the following are exothermic processes?

2. Which among the following is(are) double displacement reaction(s)?

\(Pb\) + \(CuCl_2\) → \(PbCl_2\) + \(Cu\)
\(Na_2SO_4\) + \(BaCl_2\) → \(BaSO_4\) + \(2NaCl\)
\(2H_2S\) + \(3O_2\) → \(2H_2O\) + \(2SO_5\)
\(CH_4\) + \(2O_2\) → \(CO_2\) + \(2H_2O\)
\(C\) + \(O_2\) → \(CO_2\)

Did you find an error?

Register for free to see more content

Register for free to see more content