MCQ
Calcium carbide on reacting with water gives
- AMethane
- BEthane
- CEthene
- ✓Acetylene
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$A: \left[ Ni ( en )_{3}\right]^{2+}, B :\left[ Ni \left( NH _{3}\right)_{6}\right]^{2+}, C :\left[ Ni \left( H _{2} O \right)_{6}\right]^{2+}$

Hyperconjugation occurs in
$x\ MnO + y\ PbO_2 + z\ HNO_3 \to a\ HMnO_4 + b\ Pb(NO_3 )_2 + c\ H_2O$
Anions $-$ Separated by reagent