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WorksheetsSEPARATION METHODS.
Total questions: 10
Worksheet time: 5mins
1.THERE ARE HOW MANY METHODS OF SEPARATION ?
1
2
3
Many
2.WHAT IS A SUBLIMATION ?
IT IS A METHOD OF CONVERTING SOLID-LIQUID.
IT IS A METHOD OF CONVERTING SOLID-VAPOUR.
IT IS A METHOD OF SEPARATING SOLID-SOLID.
IT IS A METHOD OF CONVERTING GAS-GAS.
3.AN ELEMENT PRESENT IN THE EARTH'S CRUST, ATMOSPHERE & HUMAN BODY.
OXYGEN
NITROGEN
SILICON
BROMINE
4.THE CHEMICAL NAME FOR DINITROGEN OXIDE [N2O].
NITROGEN
HYDROGEN
CHALK
NITROUS OXIDE
5.A COMPOUND CONTAINING CARBON, OXYGEN, CALCIUM.
WATER
CHALK
ICE
SALT
6.A METTALOID.
NICKEL
BORONE
SILICON
BROMINE
7.A NON-METAL WHICH EXISTS IN THE LIQUID STATE.
BROMINE
NITROUS OXIDE
COPPER
ELECTRON
8.THE LEAST REACTIVE METAL.
MAGNESIUM
SILVER
COPPER
9.THE POSITIVELY CHARGED PARTICLE OF AN ATOM.
ELECTRON
PROTON
NEUTRON
10.A HOMOGENOUS MIXTURE.
BRASS
DUST IN AIR
CHALK & WATER
