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Home › Grade8 › OLYMPIAD › Science › Metals & Non-metals › Metals and Non-Metals Worksheet-2

Metals and Non-Metals Worksheet-2

Metals and Non-Metals Worksheet-2

 

 

  1. Duralumin is an alloy of Aluminium used to make aircraft bodies. Which of the following is not a property of aluminium?

(a) Malleable                                 (b) Ductile

(c) Good Conductor                     (d) Heavy

 

  1. Iron is a hard metal and cannot be cut with a knife. But the metals which can be cut with a knife

(a) Sodium and Magnesium      (b) Sodium and Strontium

(c) Sodium and Potassium         (d) Magnesium and Strontium

 

  1. The metal which is used in making the filament of electric bulbs has an atomic number 22. The metal is

(a) Scandium    (b) Hafnium     (c) Titanium     (d) Chromium

 

  1. Sodium reacts violently with water and produces sodium hydroxide and a particular gas. The gas is

(a) Helium                                     (b) Hydrogen

(c) Hydrogen Chloride                (d) Water Vapour

 

  1. CBM (Coal Bed Methane) is the latest source of fuel in India, mainly found in West Bengal and Tamilnadu. Coal is a form of

(a) Carbon with atomic number 6

(b) Carbon with atomic number 8

(c) Carbon with atomic number 5

(d) Carbon with atomin number 4

 

  1. Galvannization is done to protect  iron articles from rust. The metal used for galvanization is

(a) Lead             (b) Zinc              (c) Copper         (d) Sodium

 

  1. Metals are generally good conductors of electricity. Which among the following is the best conductor of electricity?

(a) Nickel           (b) Silver            (c) Gold              (d) Sodium

 

  1. Which of the following are ores of zinc?

(a) Calamine and Zinc Blende  (b) Zinc Blende and Casserite

(c) Calamine and Sidderite        (d) Zinc Blende and Carnalite

 

  1. Brass is termed as solid solution of two or more metals.Which among the following is the solid solution of two or more metals?

(a) German Silver                        (b) Tin

(c) Haematite                                (d) Casserite

 

  1. Metals have a general characteristic of being hard. Name the metal among the following which is known to be  soft

(a) Iron              (b) Sodium        (c) Lead             (d) Tin

 

  1. Materials 'X' and 'Y' in the figure are

(a) X: Aluminium Foil           

      Y: PencilLead

(b) X: Copper Block                               

      Y: Copper Block

(c) X: Pencil Lead                  

      Y: Wooden Block

(d) X: Copper Block              

      Y: Pencil Lead

 

  1. The number of electrons metals generally have in their valence shell is:

(a) 1, 2 o   r 3    (b) 7, 8 or 9       (c) 10, 11 or 12  (d) 20, 30 or 40

 

  1. Non metals like chlorine bromine etc have a tendency to form:

(a) Cations                                     (b) Anions

(c) anions and cations                 (d) do not form ions

 

  1. Arsenic is a major cause of ground water pollution in amny parts of India. Arsenic belong to the category of:

(a) Metals          (b) Metalloids   (c) Nonmetals  (d) Minerals

 

  1. Identify the element present below hydrogen in electrochemical series:

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

 

Answer Key:

(1)-(d); (2)-(c); (3)-(c); (4)-(b); (5)-(a); (6)-(b); (7)-(b); (8)-(a); (9)-(a); (10)-(b); (11)-(c); (12)-(a); (13)-(b); (14)-(b); (15)-(b)