Tag: metal oxides and non metal oxides

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Questions Related to metal oxides and non metal oxides

Multiple choice chemistry chemistry in everyday life metal oxides and non metal oxides reactions of acids and bases properties of acids and bases

The principal products obtained on heating iodine with concentrated caustic soda solution is:

  1. $NaIO\, +\, NaI$
  2. $NaIO\, +\, NaIO _3$
  3. $NaIO _3\, +\, NaI +\ H _2O$
  4. $NaIO _4\, +\, NaI$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

On adding iodine to caustic soda(alkali), hypoiodites are formed and the peculiar smell is of iodoform and pale yellow in color.

$6NaOH + 3I _2 \longrightarrow NaIO _3 +5NaI +3H _2O$

Multiple choice chemistry chemistry in everyday life metal oxides and non metal oxides reactions of acids and bases properties of acids and bases

Metallic oxides react with ............ to give salts and water, similar to the reaction of a/an ........... with an acid, metallic oxides are said to be basic oxides.

  1. bases, base

  2. acids, base

  3. acids, acid

  4. bases, acids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Metallic oxides react with acids to give salts and water, similar to the reaction of a base with an acid, metallic oxides are said to be basic oxides.

Multiple choice chemistry chemistry in everyday life metal oxides and non metal oxides reactions of acids and bases properties of acids and bases

'The blue-green colour of the solution is due to the formation of copper(II) chloride in the reaction' is an example of which kind of chemical reaction?

  1. Reaction of metallic oxides with acids

  2. Reaction of non-metallic oxides with acids

  3. Reaction of metallic oxides with bases

  4. Reaction of non-metallic oxides with base
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metal oxides always reacts with acid to form salt and water. Copper oxide when reacts with $HCl$ it forms blue-green copper(II) chloride. 

$2CuO + 2HCl \rightarrow 2CuCl _2 + H _2O$

Multiple choice chemistry chemistry in everyday life metal oxides and non metal oxides reactions of acids and bases properties of acids and bases

Sulphuric acid reacts with cupric oxide to give:

  1. copper sulphate

  2. cuprous sulphate

  3. no reaction

  4. it converts to cuprous oxide.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$H _2SO _4 + CuO \rightarrow CuSO _4 + H _2O$


Sulphuric acid reacts with cupric oxide to give copper sulphate and water. 

Hence, the correct option is $\text{A}$

Multiple choice chemistry chemistry in everyday life metal oxides and non metal oxides reactions of acids and bases properties of acids and bases

The reaction between copper oxide and nitric acid forms:

  1. copper nitrate and hydrogen

  2. copper nitrite and water

  3. copper nitrite and hydrogen

  4. copper nitrate and water
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

$CuO + 2HNO _3 \rightarrow Cu(NO _3) _2 + H _2O$

Copper oxide and nitric acid react to give copper nitrate and water.