Chemistry Test 143

Result

Chemistry Test 143

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Weekly Quiz Competition

Question 1
4 / -1

Identify X in the following sequence of reaction

A

B

C

D
Question 2
4 / -1

Which of the following compounds will react with two moles of

A

B

C

D
Question 3
4 / -1

Ethyl ethanoate The product P will be

A

B

C

D
Question 4
4 / -1

Which of the following pairs of solutions is isotonic ?

A
6% urea and 6% glucose (w/v)

B
18% urea and 18% glucose (w/v)

C
6% urea and 18% glucose (w/v)

D
34.2% sucrose and 60% glucose (w/v)
Question 5
4 / -1

At 298K, highest osmotic pressure is exhibited by a 0.1M solution of

A
urea

B
glucose

C
KCl

D
Question 6
4 / -1

Which of the following is an electrically prepared semipermeable membrane ?

A
Calcium phosphate

B
Ferrous ferriycanide

C
Copper ferrocyanide

D
Potassium ferrocyanide
Question 7
4 / -1

What will happen if an egg whose white surface is removed by dilute HCl solution is placed in a saturated solution of NaCl ?

A
The egg will dissolve in the NaCl solution

B
The egg will shrink

C
The egg will swell

D
Nothing will happen
Question 8
4 / -1

The van’t Hoff factor for a 0.1 M solution is 4.20. The degree of dissociation is

A
80%

B
90%

C
78%

D
83%
Question 9
4 / -1

When mercuric iodide is added to an aqueous solution of potassium iodide (in excess), a soluble complex,is formed. Then,

A
the freezing point of the resulting solution is raised

B
the freezing point of the resulting solution is lowered

C
the freezing point of the resulting solution does not change

D
the boiling point of the resulting does not change
Question 10
4 / -1

The molar boiling-point constant for water is 0.513 Km–1. When 0.1 mole of sugar is dissolved in 200.0 g of water, the solution boils under a pressure of 1.0 atm at

A
100.513^oC

B
100.0513^oC

C
100.256^oC

D
101.025^oC