Advertisements
Advertisements
Question
The substance that will be flattened on beating with a hammer is
Options
crystal of iodine
lump of sulphur
piece of coal
zinc granule
Solution
zinc granule
Explanation -
Metals can be beaten into thin sheets (or flattened) with a hammer. Non-metals break into small pieces when hammered. So, zinc granule will be flattened on beating with a hammer.
APPEARS IN
RELATED QUESTIONS
You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.
Complete and balance the following equation:
Cu (NO3)2 (aq) + Zn(s) →
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place
What is the action of water on aluminium ? Write equation of the chemical reaction involved.
You are given a solution of AgNO3. Which of the following do you think cannot displace Ag from AgNO3solution?
(a) Magnesium
(b) Zinc
(c) Gold
(d) Copper
Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.
Which of the following property is not responsible for copper to be used as electrical conduction wires?