BUK Chemistry 2011/2012 Past Questions

Existence of two or more forms of the same element in the same physical state is known as

When an atom gains an electron it becomes

The alkali metals exhibit simliar chemical properties because

What is the likely formula of a compound formed between element M in group two and X in group seven.

Equal volume of all gases at the same temperature and pressure contain the same number of molecules is expression of

Which of the following expression gives the percentage by mass of nitrogen in NH₄NO₃? (H=1, N=14, O=16)

A solution of PH=7 is

Amphoteric oxides are oxides which

The following acids are mono basic except

An arrangement of two different metals in aqueous solution of their salts to produce an electric current is known as

Which of the following statement is not correct about electrolysis?

Which of the following is not correct about catalysis

The rate of production of hydrogen gas from the reaction between zinc granules and hydrochloric acid can be increased by

If the third member of a homologous series is C₃H₈, the fifth member will be

Which of the following exhibits resonance

On exposing palm wine to air for some days, it becomes sour owing to the conversion of

When acidified KmNO₄ solution is decolorized by ethane, the gas acts as

What amount of hydrogen will be required for complete hydrogenation of one mole of pent-3-yne.

When excess carbon(iv)oxide is passed into lime water, the turbidity produced initially disappears due to the formation of

Which of the following is a disaccharide