Second part of the 10 questions quiz on metals and non-metals for class VIII of CBSE Board. Physical properties of metals are different from non metals and to classify elements as metals and non metals , one has to study the chemical and physical properties of elements .They are broadly classified on the basis of Lustre , Hardness , Lustre , Ductility and Malleability.
Quiz on Metals & Non Metals-Part II
Std.VIII_Science_ Materials: Metals and Non-metalsCongratulations - you have completed Std.VIII_Science_ Materials: Metals and Non-metals.You scored %%SCORE%% out of %%TOTAL%%.Your performance has been rated as %%RATING%%Your answers are highlighted below.
Question 1Ductility: Drawn into wires: : _______ : Drawn into sheets.
Malleability Wired-ability Good conductors Sheetability None of the above
Question 2Which of the following are the characteristics of a metal?
Bad conductors Sonorous Lustrous Soft
Question 3__________ : Soft metal:: Mercury: ___________.
Sodium, hard metal Steel, liquid metal Copper, can be cut with knife Sodium, liquid metal
Question 4________ metal can be cut with knife.
Magnesium Potassium Iron Zinc
Question 5The dull green coating on Copper vessels is caused by ________.
Exposure to air Rusting of copper Mixture of copper carbonate and copper hydroxide Copper vessels go red on exposure to air
Question 6Sulphur dioxide (SO2) reacts with water forming __________
Sulphurous acid (H2So3) Sulphuric acid (H2SO4) Hydrogen Sulphide (H2S) Residual Sulphur (S)
Question 7Oxides of non-metals are ______ in nature.
Neutral Acidic Basic All of the above
Question 8S + O2 ----------------à SO2 :: SO2 + H2O -------------------à __________
H2SO4 HSO4 H2SO3 HSO3
Question 9Sodium is stored in kerosene because:
Sodium reacts with water vigorously Sodium combines with water decreasing the room temperature drastically Water is very costly Sodium stays for long in kerosene without getting harmed
Question 10___________is a non-metal which catches fire on being exposed to air.
Mercury Phosphorous Magnesium CalciumOnce you are finished, click the button below. Any items you have not completed will be marked incorrect.There are 10 questions to complete.