How is dihydrogen obtained from? Give one equation in each case :
(A) Dilute sulphuric acid
(B) sodium hydroxide
(C) water

Which among the following changes are exothermic or endothermic in nature? (a) Decomposition of ferrous sulphate (b) Dilution of sulphuric acid (c) Dissolution of sodium hydroxide in water (d) Dissolution of ammonium chloride in water

Arrange the following in the order of their increasing pH values: A)Acetic acid B)sulphuric acid C)sodium hydroxide D)ammonium hydroxide

Write word equations and then balanced equations for the reaction taking place when : (a) dilute sulphuric acid reacts with zinc granules. (b) dilute hydrochloric acid reacts with magnesium ribbon. (c) dilute sulphuric acid reacts with aluminium powder. (d) dilute hydrochloric acid reacts with iron filings.

In an experiment to determine the enthalpy of neutralisation of sodium hydroxide with sulphuric acid, 50 cm^(3) of 0.4M sodium hydroxide were titreated thermometrically with 0.25M sulphuric acid. Which of the following plots gives the correct representation ?

Write word equations and balanced equations for the reactions taking place when: (a). Dilute sulphuric acid reacts with zinc granules. (b). Dilute hydrochloric acid reacts with magnesium ribbon. (c). Dilute sulphuric acid reacts with aluminium powder. (d). dilute hydrochloric acid reacts with iron filings.