A. Sodium Nitrate
B. Dilute acetic acid
C. Chloride of lime
D. Calcium
During winter in cold countries, the ____ is mixed to melt the ice on the icy roads.
A. Salt
B. Chlorine
C. Carbon dioxide
D. Water
In a very low temperature which from the following will freeze at last?
A. River water
B. Canal water
C. Sea water
D. Water in a lake
Chemical name of vinegar is __________?
How much per cent of tin and lead make a fuse wire?
A. 63% tin and 37% lead
B. 63% lead and 37% tin
C. 63% tin and 37% aluminium
D. 63% lead and 37% aluminium
What is the second most abundant element in the earth‟s crust?
A. Silicon
B. Aluminium
C. Sodium
D. Magnesium