Tag: chemistry

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Multiple choice chemistry non-metals introduction to non-metals occurence of metals occurrence of metals and non metals

Find the odd one out from the following:
Aluminium, iron, copper, silver, iron, brass, sand and shirt 

  1. iron and copper

  2. brass and silver

  3. aluminium and sand

  4. sand and shirt
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ans : (D) Sand and Shirt

Note : Sand $\rightarrow$ it is composition of $SiO _{2}, Al _{2}O _{3}, K _{2}O, ....$ etc. which posses metal properties.
Above all pair posses metal properties except sand and shirt.
Shirt is non-metal (made up of fabric).

Multiple choice chemistry non-metals introduction to non-metals occurence of metals occurrence of metals and non metals

Non metal oxides are:

  1. Acidic in nature

  2. Amphoteric in nature

  3. Basic in nature

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metal oxides are basic in nature whereas non-metal oxides are acidic in nature.


Non-metal oxides are called acidic oxides because when a non-metal reacts with oxygen, it gives an oxide which on dissolution with water gives an acid.

 Hence, option A is correct.