Chemistry Questions

Which one of the following statements would be INCORRECT to use?

In a combination reaction there can be ______.

I. two or more than two reactants

II. two or more than two products

III. only one product

Isotopes of an element have ______.

Which of the following statements are CORRECT?

I. Oxides of metals are generally basic.

II. Oxides of non-metals are generally acidic.

III. Non-metals are generally electro positive.

An atom can achieve octet by ______.

I. sharing electron

II. gaining electron

III. losing electron

Group 8A of the periodic table contains the

Which of the following statements are CORRECT?

I. Ethanol is a good solvent for organic compounds.

II. Boiling and melting points of ethanol are low with respect to water.

III. Ethanol is used tincture iodine

Saturated carbon compounds can form which types of chain structures?

I. Straight chain

II. Branched chain