Which of the following substances is that detergents

A. are readily available

B. are in powerdered from

C. are non-biodegradable

D. lather readily with water

The products of fermentation of sugar are

A. carbon(IV) oxide and water

B. ethanol and carbon (IV) oxide

C. ethanol and water

D. ethanol and enzymes

The IUPAC name of C₂H₆COOC_{2,/sub>H6 is}

A. ethyethanoate

B. ethylproanoate

C. propylethanoate

D. propylpropanoate

An organic compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen. What is the empirical formula of the compound? [O = 16.0, C = 12.0, H = 1.0]

A. C₂HO

B. CHO

C. CH₂O

D. CHO₂

Compound N reacts with sodium metal to produce a gas that gives a 'pop' sound with a burning splint N also react with ethanoic acid to give a sweet smelling liquid. Compound N is an

A. alkanol

B. alkanoate

C. alkane

D. alkanoic acid

The main function of limestone in the blast furnance is to

A. act as a reducing agent

B. act as a catalyst

C. remove impurities

D. supply carbon (IV) oxide

Which of the following substances cannot be classified as a heavy chemical?

A. AgNO₃

B. CaO

C. CaOCI₂

D. H₂SO₄

Which of the following metals exists as liquid at ordinary temperature?

A. Copper

B. Gold

C. Mercury

D. Silver