Tag: composition of matter

Quizzes (15) Questions (47)

Questions Related to composition of matter

Multiple choice chemistry composition of matter classification of mixtures mixtures: examples and properties types of solutions

Which pair of the following substances is said to be isomorphous?

  1. White vitriol and blue vitriol

  2. Epsom salt and Glauber salt

  3. Blue vitriol and Glauber salt

  4. White vitriol and epsom salt
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

White vitriol and blue vitriol are known as isomorphous because they have similar chemical formula and closely similar in shape.

Multiple choice chemistry composition of matter physical properties of non-metals uses of metals and non metals physical properties of metals and non-metals

Compare metals and non-metals with particular emphasis on solubility:

  1. Both dissolve in solvent

  2. None of them dissolve in solvent

  3. Metal dissolve while non-metal do not dissolve in solvent

  4. Non-metal dissolve while metal do not dissolve in solvent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
MetalsThey do not dissolve in solvents except by chemical action. Non-metalsThey dissolve in solvents and can be re-obtained by evaporation. Example: sulphur in carbon disulphide.
Multiple choice chemistry composition of matter physical properties of non-metals uses of metals and non metals physical properties of metals and non-metals

The non-metallic mineral among the following is :

  1. graphite

  2. chromite

  3. bauxite

  4. tungsten
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chromite is an ore of chromium, bauxite is an ore of aluminium and tungston are metallic in nature while graphite is an allotrope of carbon and a carbonaceous compound. It is a very soft allotrope of carbon while other allotrope of carbon diamond is the hardest known element on this earth. This is because of the chemical structure of graphite which shows slippery nature of layers of carbon and presence of loose electrons.

Multiple choice chemistry composition of matter physical properties of non-metals uses of metals and non metals physical properties of metals and non-metals

A mirror is:

  1. opaque

  2. transparent

  3. translucent

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A silver glass mirror is an ordinary mirror, coated on its back surface with silver, which produces images by reflection. This kind of glass mirror is produced by coating a silver, copper film and two or more layers of waterproof paint on the back surface of float glass, which perfectly resists acid and moisture.

As it reflect all the light falling on it and we can see through it so it is a opaque.