POlyvinyl chloride is used to produce

A. bread

B. pencils

C. ink

D. pipes

An organic compound that does not undergo a reaction with both hydrogen cyanide and hydroxylamine can be

A. alkene

B. alkanal

C. alkanone

D. alkanoic acid

When the two end alkyl groups ethyl ethanoate are interchange, the compound formed is known as

A. methyl ethanoate

B. ethyl propanaote

C. methyl propanoate

D. propyl ethanoate

From the diagram above the mass of crystals deposited when 1 dm ³ of a saturated solution of NaCl is cooled from 80 ^oC to 60^oC is
[Na = 23, Cl = 35.5]

A. 117.00 g

B. 58.50 g

C. 11.70 g

D. 5.85 g

In the diagram above, Y is a mixture of

A. calcium hydroxide and ammonium chloride

B. calcuim hydroxide and sodium chloride

C. sodium chloride and ammonuim trioxonitrate (V)

D. sodium dioxonitrate (lll) and ammouium chloride

The element that is likely to participate in covalent rather than ionic bonding is

A. Z

B. Y

C. X

D. W

The least reactive element is

A. W

B. X

C. Y

D. Z

In the diagram above, the mixture of the solids P and Q can be separated by

A. distillation

B. fractional distillation

C. crystallization

D. fractional crystallization

Which of the compounds above would react to take up two molecules of bromine durng bromination?

A. l only

B. lll only

C. l and ll only

D. ll and lll only