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Worksheetselements compounds and mixture
Total questions: 18
Worksheet time: 12mins
Arsenic and Sulphur are the example of
metal and metalloid
non metal and metalloid
both are non metal
metalloid and non metal
Cu,Br,Zn,Na,Na - which one is odd in the series ?
Zn
Na
Br
Mg
Symbol of Xenon ?
Xn
Xe
X
Xenon
Sodium is a ______metal
Hard and reactive
Hard and non reactive
Soft and non reactive
soft and reactive
Formula of Acetic acid
C6H12O6
HCOOH
CuSO4
CH3COOH
Alloys are the mixture of
Gas and gas
liq and solid
liq and liq
solid solid
Liq -Gas heterogeneous mix is
oil and water
sand and water
soap lather
Acetone and alcohol
Drugs from blood can be separated by
Evapoaration
Solvent extraction
Fractional distillation
None of this
Salt from sea water can be obtained by
condensation
centrifugation
evaporation
none of them are good
Boiling point difference must be 30 degree-for which method
Distilattion
Paper chromatography
Fractional distillattion
Separating funnel
Application of centrifugation-
Sand and water
Salt and sea water
urine and blood
milk and cream
ammonium chloride,Sodium chloride, Iodine, Camphor,Napthalene- find the odd one out
Napthalene- because it the only organic compound
Iodine-Because it is the only gas
Ammonium chloride- Because it contains Chlorine
Sodium chloride because it is not a sublimate
Gaseous state changes into a liquid state is called-
Sublimation
Freezing
Condensation
Freezing
Which pair is wrong-(Li,K), (As,Sb),(Na,N),(P,Cl)
1st pair
2nd pair
3rd pair
4th pair
Heat is not needed for which of the method
Evaporation
Distillation
Chromatography
Sublimation
we can use Charcoal in which of the separation method
Paper chromatography
Separating funnel
Sedimentation Decantation method
filtration
Pure Sugar is obtained by
evapoarting sugar water
filtering sugar water
centrifuging sugar water
Crystallisation sugar water
LPG cylinders contain cooking gas in
liq state high pressure
gas state high pressure
liq state low pressure
liq state very low pressure
