Select the correct word from the list in bracket to complete each statement .
The reaction of ________[calcium carbonate /calcium oxide/calcium sulphite]with dilute nitric acid is an example of a neutralization reaction.

Select the correct word from the list in bracket to complete each statement . Pure conc . Nitric acid of fuming nitric acid renders the metal _______[zinc /copper/ iron] passive or inactive.

Select the correct answer from the choice in bracket to complete each sentence: An example of a monoatomic molecule is _______ [hydrogen/helium).

Select the correct answer from the choice in bracket to complete each sentence: Dust in air is an example of________ [heterogeneous/homogeneous) mixture.

Select the correct word from the list in bracket to complete each statement . Aqua regia is a mixture of one part of ____ and three parts of ______ [ conc. Hydrochloric acid/ conc .nitri acid] in which nitric acid ______[reduces/ oxidises] hydrochloric acid to chlorine.

Select the correct word from the list in bracket to complete each statement . A mineral acid obtained from conc .nitric acid on reaction with a non - metal is _______ [hydorchloric acid/sulphuric acid/carbonic acid].

Select the correct word from the list in bracket to complete each statement . The oxidized product obtained on reaction of H_(2)S gas with dil . HNO_(3) is ________________[Sulphur dioxide /Sulphur/sulphuric acid].

Choose the correct word from the brackets to complete the sentence . Sodium nitrate reacts with ______ (consentraed /dilute)sulphuric acid to produce nitrc acid . Write equation for the same.

Write thermal decomposition reaction of Calcium carbonate.

In an experiment, 4.5 mol of calcium carbonate are reacted with dilute hydrochloric acid. How many moles of HCI are used in this reaction?

Select the correct word from the words in bracket to complete the sentence : The electrode at which anions donate excess electrons and are oxidized to neutral atoms is the ________[anode/cathode]