HARD
Earn 100

Which among the following species is reduced by tin easily?

50% studentsanswered this correctly

Important Questions on Metals and Non-Metals

EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Give reasons-
Platinum, gold and silver are used to make jewellery.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Explain why the surface of some metals acquires a dull appearance when exposed to air for a long time.
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name the metals which possesses high and low density.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name two metals whose melting points are so low that they melt when held in hand.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Write a short note on bonding in metals.
HARD
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
State any five physical properties of metals and five physical properties of non-metals.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Compare the physical properties of metals and non-metals with respect to malleability, ductility, conductivity, physical states and melting and boiling point.
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
What is meant by "brittleness"? Which type of elements usually show brittleness: metals or non-metals?
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name one metal and one non-metal which exist in liquid state at room temperature.
HARD
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
You are given a dry cell, a torch bulb with holder, wires and crocodile clips. How would you use them to distinguish between samples of metals and non-metals?
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Which of the following metal exists in the liquid state?
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Explain the meaning of malleable and ductile.
HARD
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Metals are said to be shiny. Why do metals generally appear to be dull? How can their brightness be restored?
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Why pure gold is not used for making jewellery?
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name two non-metals which are both brittle and non-ductile
HARD
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name two physical properties each of sodium and carbon in which their behaviour is not as expected from their classification as metal and non-metal respectively.
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
What is meant by saying that the metals are malleable and ductile? Explain with examples.
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name two metals which are both malleable and ductile.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
Name two metals which are used for making electric wires.
EASY
Science>Chemistry>Metals and Non-Metals>Physical Properties of Metals and Non-metals
You are given a hammer, a battery, a bulb, wires and a switch.

(a) How could you use them to distinguish between samples of metals and non-metals?

(b) Access the usefulness of these tests in distinguishing between metals and non-metals.