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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
No reaction
Decomposition Reaction
Neutralization Reaction
2)
Which gas is liberated when aluminium metal reacts with a solution of sodium hydroxide?
Nitrogen gas
Hydrogen gas
No gas evolution
Oxygen
3)
Complete the given chemical reaction? Al2O3 + 2NaOH → …… + H2O
Na2O
NaAlO2
AlNaO2
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)?
HCl
Nitric Acid
All of these
Sulphuric acid
5)
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is
Sodium
Copper
Iron
Aluminium
6)
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
Aluminium
Magnesium
Iron
Copper
7)
What is formed when zinc reacts with sodium hydroxide?
Sodium zincate and water
Sodium zinc-oxide and hydrogen gas
Zinc hydroxide and sodium
Sodium zincate and hydrogen gas
8)
What are amphoteric metals?
Metal that reacts with Acid and Not with Base
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
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
FeO
CuO
ZnO
MgO