1993 - WAEC Chemistry Past Questions and Answers - page 3

Which of the following will not affect the degree of hardness in a sample of temporarily hard water?

Examples of polymers include the following except

When the trioxonitrate (IV) salt of an alkali metal Y is heated, the formula of the residue is

Which of the following compounds of tin is a strong reducing agent?

In which of the following pairs are both substances deliquescent?

Producer gas is a mixture of

An alkene may be converted to an alkane by

Which of the following gases are diatomic except

Which of the following is correct about the electrons in the 1s orbital? They

The product of the reaction between ethanol and excess acidified K_{2Cr2O2 is}