Question

Identify the type of reaction for the following examples
1)Na2 so4 + 2K =K2 so4 +2Na
2)H2+S = H2S
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Answer 1

Answer:

1 displacement reaction and 2 combination reaction

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Answer 2

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• First is displacement reaction
• 2nd is Combination reaction

$Na_{2} S0_{4} + 2K \rightarrow \: K_{2}s0 _{4}$

$H_{2} + s \rightarrow \: H _{2}s$

1. hence here K displaced Na from $Na_{2}SO_{4}$
2. In 2nd part $H_{2} \:Combines \: with \:S\: to\:give\:H_{2}$