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The correct answer is C
When hard water is evaporated completely, the white solid remains in the container. It may be due to the presence of
1. Carbonates of Ca and Mg
With the increase of the effective nuclear charge, the size of the atom or ion
A compound that is a white solid which absorbs water vapour from the air is
Which device is used to measure atmospheric pressure?
A wire is bent into a circular loop. If current is passed through it, which one of the following statements is valid?
What is the most basic criteria used to decide whether something is alive?
Supersonic speed is speed greater than the speed of sound (in air at sea level) that is to say around______ miles/hour.
The phenomenon of splitting white light into its component colours is called:
If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this?
Two identical metallic spheres are charged. One has +Q charge, the other –Q charge. They are connected by a conducting wire. After equilibrium:
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