Metals & Non-metals

Metals and Non-Metals Worksheet-4

1. Identify the correct order of metal reactivity ,from the given options:

(a) Copper > Mercury > Sodium > Magnesium

(b) Potassium > Sodium > Calcium > Magnesium

(c) Sodium > Tin > Zinc > Magnesium

(d) Potassium > Calcium > Aluminum

2. The metal that will react with concentrated sulphuric acid on heating

(a) Platinum                                  (b) Copper

Metals and Non-Metals Worksheet-5

1. Identify the alloy of Aluminium which is also known as magnetic steel:

(a) Duralumin                               (b) Alnico

(c) Brass                                         (d) German Silver

2. Amalgams are mixture of metals in mercury (liquid metal). For filling the teeth cavities which of the following metal amalgams may be used?

(a) Gold                                          (b) Aluminium

Metals and Non-Metals Worksheet-6

1. Noble gases do not react because they have _____ electrons in their valence shell.

(a) 3                    (b) 6                    (c) 1                     (d) 8

2. The element present below hydrogen in electrochemical series is:

(a) Mg                (b) Hg                 (c) Pb                  (d) Sn