is matter around us pure

which of the following is a mixture?

• air

• ice

• hydrochloric acid

• mercury

Tick the COMPOUNDS.

• SOAP

• METHANE

• CALCIUM CARBONATE

• SILICON

• TIN

WHICH ONE IS A MIXTURE?

• BLOOD

• CARBON DIOXIDE

• SILICON

• SODIUM

• TIN

CORRECT THE SENTANCE:

"A SUBSTANCE IS AN IMPURE FORM OF MATTER"

WRITE ONLY THE NAME OF THE PROCESS:

BUTTER FROM CURD

WHAT IS THE SIZE OF THE PARTICLES OF A SUSPENSION?/

• MORE THAN 100nm

• less than 1nm

• less than 1nm

Which Of The Following Is A PHYSICAL CHANGE

• RUSTING OF ALMIRAH

• MELTING OF BUTTER IN A PAN

• MAKING A FRUIT SALAD WITH RAW FRUITS

• BURNING OF PAPER AND WOOD

• DISSOLVING COMMON SALT IN WATER

WHICH 2 WILL SHOW THE TYNDALL EFFECT

• STARCH SOLUTION

• COPPER SULPHATE SOLUTION

• MILK

• SALT SOLUTION

HOW CAN WE SEPERATE A MIXTURE OF SALT AND CAMPHOR/?

TRUE OR FALSE: CALCIUM OXIDE IS A PURE SUBSTANCE