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प्रश्न
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
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उत्तर
Sodium hydroxide + zinc → hydrogen + sodium zincate
संबंधित प्रश्न
A metal ______ hydrogen in the reactivity series gives hydrogen with ______.
Give reason for the following:
Though hydrogen is lighter than air it cannot be collected by downward displacement of air.
Name the following:
Two metals which give hydrogen with cold water.
Multiple Choice Question
Water gas is a mixture of
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Aluminium - 2Al + 3H2SO4 → ______+ _______ [g]
State the electronic configuration of hydrogen [at. no. 1].e
Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table.
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
