1.
The most abundant element in the universe is:
2.
In extraction of copper, the flux used is
3.
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
4.
Which of the following is purest form of carbon?
5.
Which of the following properties is generally not shown by metals?
6.
Food cans are coated with tin and not with zinc because
7.
Which among the following alloys contain mercury as one of its constituents?
8.
Generally, non-metals are not conductors or electricity, which of the following is a good conductor of electricity?
9.
Which of the following methods is suitable for preventing an iron frying pan from rusting?
10.
Galvanisation is a method of protecting iron from rusting by coating with a thin layer of
