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प्रश्न
Complete and balance the following reaction.
Mg + H2O →_____________ +___________
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उत्तर
Mg + 2H2O → Mg(OH)2 + H2
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संबंधित प्रश्न
Fill in the blank
Hydrogen is ...................soluble in water.
A metal ______ hydrogen in the reactivity series gives hydrogen with ______.
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
How do different metals displace hydrogen from water? Explain with the help of equations.
What is noticed if the products are not allowed to escape?
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the metals copper, zinc, magnesium or sodium would be the most suitable?
Why are the following metals not used in the lab preparation of hydrogen?
calcium
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
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.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
