Question
Define Thermal conductivity. What is the SI unit of Thermal resistance?
Define Thermal conductivity. What is the SI unit of Thermal resistance? [2 + 1] OR Define volume expansion coefficient of a gas.…
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How much H2 is obtained when steam is passed over 21 g red hot iron? What would be the volume of that H2 at STP?
How much H2 is obtained when steam is passed over 21 g red hot iron? What would be the volume of that…
Question
Mention a phenomenon by which it can be said that the gas molecules are in constant motion. Mention two incorrect postulates of the Kinetic Theory of gas.
Mention a phenomenon by which it can be said that the gas molecules are in constant motion. Mention two incorrect postulates of…
Question
What is a denatured spirit?
What is a denatured spirit? OR Write one use each of Ethyl alcohol and Acetic acid.
Question
Why is dehydrated calcium chloride added during the extraction of sodium through electrolysis of sodium chloride ?
Why is dehydrated calcium chloride added during the extraction of sodium through electrolysis of sodium chloride ? OR Mention two ways of…
Question
Why is concentrated H2SO4 not used to dry ammonia gas ?
Why is concentrated H2SO4 not used to dry ammonia gas ?
Question
Why is the formula weight appropriately used instead of the molecular weight in the case of the ionic compounds?
Why is the formula weight appropriately used instead of the molecular weight in the case of the ionic compounds?
Question
Define the Octet rule. Give two examples of such compounds in which an exception to the Octet rule is observed.
Define the Octet rule. Give two examples of such compounds in which an exception to the Octet rule is observed. OR Write…
Question
Establish the relationship between internal resistance and EMF of an electric cell.
Establish the relationship between internal resistance and EMF of an electric cell.
Question
At what angle must a light ray fall on the surface of an equilateral prism so that its angle of minimum deviation will be 20°?
At what angle must a light ray fall on the surface of an equilateral prism so that its angle of minimum deviation…