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प्रश्न
Select the correct options for the following statement:
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
विकल्प
Nickel
Sodium
Iron
Iron [III] oxide
Magnesium oxide
उत्तर
Magnesium oxide
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
How do different metals displace hydrogen from water? Explain with the help of equations.
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Why are the following metals not used in the lab preparation of hydrogen?
calcium
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Complete and balance the following reaction.
Al + KOH + H2O→_____________ +___________
Select the correct options for the following statement:
The product formed on combustion of hydrogen in air is ___.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
