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Reactions of NaOH with Aluminium Metal and HCl
Reactions of NaOH with Aluminium Metal and HCl
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1)
What type of reaction occurs when sodium hydroxide (NaOH) reacts with hydrochloric acid (HCl), resulting in the formation of sodium chloride (NaCl) and water (H2O)?
Combustion Reaction
Neutralization Reaction
No reaction
Decomposition Reaction
2)
Which gas is liberated when aluminium metal reacts with a solution of sodium hydroxide?
Hydrogen gas
Oxygen
Nitrogen gas
No gas evolution
3)
Complete the given chemical reaction? Al2O3 + 2NaOH → …… + H2O
Na2O
AlNaO2
NaAlO2
Al(OH)3
4)
Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas when reacting with metals (except Mn and Mg)?
All of these
HCl
Nitric Acid
Sulphuric acid
5)
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is
Iron
Sodium
Aluminium
Copper
6)
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
Magnesium
Iron
Aluminium
Copper
7)
What is formed when zinc reacts with sodium hydroxide?
Sodium zinc-oxide and hydrogen gas
Sodium zincate and water
Sodium zincate and hydrogen gas
Zinc hydroxide and sodium
8)
What are amphoteric metals?
Metal that reacts with Base and Not with Acid
Metal that does not react with Base and Acid
Metal that reacts with both acid and base
Metal that reacts with Acid and Not with Base
9)
Which of the following metals is not amphoteric in nature?
Lead
Copper
Zinc
Aluminium
10)
A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify black coloured product is
ZnO
MgO
CuO
FeO