Complete the statements by filling in the blank with the correct word/s:
The metal which reacts with steam and the reaction is reversible is _______[calcium/iron]

Complete the statements by filling in the blank with the correct word/s: The reaction of coke with steam to give water gas is an example of an_______[exothermic/endothermic] reaction.

Complete the statements by filling in the blank with the correct word/s: Decomposition of silver salts in the presence of sunlight is an example of __________[double decomposition/photochemical decomposition]

Complete the statements by filling in the blank with the correct word/s: The element molybdenum used in the reaction of nitrogen with hydrogen at elevated temperatures is an example of a ____________[promoter/catalyst].

Complete the statements given below by filling in the blank with the correct words. The basic unit of an element is a/an__________[molecule/atom/ion]

Complete the statements given below by filling in the blank with the correct words. The formula of silver [I] chloride is __________ [AgCl//AgCl_(2)]

Complete the statements by filling the blanks with the correct word from the bracket. The ratio of hydrogen & oxygen in water is……….[2:1/1:2]

Complete the statements by filling in the blank with the correct word/s: Direct combination reaction of phosphorus pentoxide with water gives__________ [H_(3)PO_(3)//H_(3)PO_(4)]

Complete the statements by filling the blanks with the correct word from the bracket. Kerosene & water form a………...(miscible/immiscible) mixture.

Complete the statements given below by filling in the blank with the correct words. Element __________[calcium/lead/carbon]has the symbol derived from its Latin name plumbum.

Complete the statements by filling the blanks with the correct word from the bracket. Adsorption capacity of wood charcoal is increased by passing……….. [carbon dioxide/steam] over wood charcoal, at high temperatures.