Question

MULTIPLE CHOICE QUESTIONS
1.
C.
CHAPTER 2
a.
Sublimation would work to separate which
one of these mixtures:
Common salt and
sugar
b. Chalk and cheese
Sand and camphor
d. lodine and naphthalene
2.
Formic acid has a melting point of 8.4 °C and
a boiling point of 100.8 °C. Which method
should be adopted to remove water from an
aqueous solution of formic acid?
Fractional distillation
b. Crystallisation
Both work equal well
d. Neither
3. Stirring sulphur in carbon disulphide
produces:
a. Colloidal solution
b. True solution
e. Suspension
d. Carbon trisulphide
4. Stirring sulphur in water produces:
1. Colloidal Solution
b. True solution
c. Suspension
d. HS gas
5. Which of the following is a compound?
b. Water
c. Gun metal
d. Gun powder
6. Which of the following is a mixture?
b. Quick silver
c. German silver d. Silver nitrate
7.
Milk and milk of magnesia are:
Both colloidal solution
b. Both suspensions
e. Colloid and suspension, respectively
d. Suspension and colloid, respectively
8. Which of the following is not an emulsion?
a. Mayonnaise
b. Eg yolk
c. Shaving fonm
d. Cold cream
9. Which of the following is incorrect about
iodine?
a. It is an element.
b. It is a lustrous grey solid.
e. It is a metal.
d. It sublimes to evolve purple vapours on
heating.
10. Which among the following is true about
tincture of iodine?
n. It is an antiseptic.
b. It is a mixture.
It stains the skin upon application.
d. All of the above.
11. Which of the following is a solid foam?
Bread
b. Butter
e. Jam
d. Sauce
12. Copper sulphate solution in water does not
exhibit:
1. Blue colour
b. Electrical conduction
c. Tyndall effect
d. Fading of colour on dilution.
Answer it fast​

Answer 1

Answer:

oh my god it is very very long

Answer 2

Answer:

Explanation:

1. c

2.c