1) According to arrhenuius theory what is an acid ? a) A substance which on dissolving gives rise to H+ ions b) A proton acceptor c) A substance that releases Na+ ions d) A substance that makes water less acidic e) A substance that donates a pair of eelctrons to form a bond . f) A substance that turns water blue . 2) what is a base ,according to arrhenius theory? a) A substance that makes water more neutral b) A substance that releases H+ ions c) A substance that releases CO2 when dissolved  d) A substance which on dissolving gives rise to OH- ions . e) A substance that makes water red f) None of the above 3) which among the following is a strong acid ? a) NH3 b) KOH c) HCl d) NaOH e) H3PO4 f) H2O 4) which among the following is a strong base ? a) NaCl b) HNO3 c) CO2 d) HCl e) NaoH f) HF 5) which is a weak acid ? a) Ca(OH)2 b) KOH c) CH3COOH d) HBr e) NaoH f) H2O

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