Select the correct word from the words in bracket
Decomposition of `[NaCl//NaHCO_3//NaNO_3]` by dil. `H_2SO_4` , forms an unstable acid.

Select the correct word from the words in bracket The solution which on heating with CaCO_3 evolves CO_2 gas. [conc. H_2SO_4 / dil. H_2SO_4 / dil.HCI]

Select the correct word from the words in bracket The pH of blood is around 7.4, of saliva is 6.5 and of acid rain is around 4.5. The solution which is slightly alkaline of the three. [saliva / acid rain / blood]

Select the correct word from the words in bracket The solution which can be used to distinguish an ammonium salt from a sodium salt. [CuCl_2 "soln"//NH_4OH// dil.H_2SO_4// AgNO_3 "soln"]

Select the correct answer from the choice in brackets. The salt which reacts with dil . H_(2)SO_(4) acid to given an insoluble ppt. [Cu(NO_(3))_(2)//Zn(NO_(3))_(2)//Pb(NO_(3))_(2)] .

Select the correct word from the words in bracket to complete the sentence : Salts ionize in aq. soln. on passage electric current to give ____[negative/positive ]ions other H^(+) ions

Select the correct word from the words in bracket A metal which reacts with an alkali to liberate hydrogen. [iron/copper / aluminium]

Select the correct word from the words in bracket to complete the sentence: Electrolysis is a/an _______[oxidation / reduction /redox] reaction in which reduction reaction takes place at the ________[cathode/anode]

Complete the statements by selecting the correct word from the word in brackets. Ammonia in the liquefied form is _____[acidic/basic/neutral]

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 words in bracket to complete the sentence : According to Arrhenius's theory the amount of electricity conducted by the electrolyte depends on the __________[nature/concentration]of the ions is solution.