Chemistry Test

Result

Chemistry Test - 8

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Weekly Quiz Competition

Question 1
1 / -0

When a metal rod M is dipped into an aqueous colourless concentrated solution of compound N, the solution turns light blue. Addition of aqueous NaCl to the blue solution gives a white precipitate O. Addition of aqueous NH3 dissolves O and gives an intense blue solution.The metal rod M is

A

Ni

B

Co

C

Cu

D

Fe
Question 2
1 / -0

The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits

A

geometrical isomerism

B

optical isomerism

C

both optical and geometrical isomerism

D

neither optical nor geometrical isomerism
Question 3
1 / -0

A

Option C

B

Option B

C

Option A

D

All of these
Question 4
1 / -0

Geometrical shapes of the complexes formed by the reaction of Ni^2+ with Cl^– , CN^– and H2 O, respectively, are

A

octahedral, square planar and octahedral

B

tetrahedral, square planar and octahedral

C

square planar, tetrahedral and octahedral

D

octahedral, tetrahedral and square planar
Question 5
1 / -0

The correct statement about the following disaccharide is

A

Ring (a) is furanonse with α - glycosidic link

B

Ring (a) is pyranonse with α - glycosidic link

C

Ring (b) is furanonse with α - glycosidic link

D

Ring (b) is pyranonse with β - glycosidic link
Question 6
1 / -0

The concentration of potassium ions inside a biological cell is at least twenty times higher than the outside. The resulting potential difference across the cell is important in several processes such as transmission of nerve impulses and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is:M(s) | M^+ (aq; 0.05 molar) || M^+ (aq), 1 molar) | M(s)For the above electrolytic cell the magnitude of the cell potential | E cell |= 70 mV. If the 0.05 molar solution of M^+ is replaced by 0.0025 molar M^+ solution, then the magnitude of the cell potential would be

A

140 mV

B

35 mV

C

70 mV

D

700 mV
Question 7
1 / -0

A decapeptide (Mol. Wt. 796) on complete hydrolysis gives glycine (Mol. Wt. 75), alanine andphenylalanine. Glycine contributes 47.0% to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is

A

8

B

7

C

6

D

5
Question 8
1 / -0

Among the following, the intensive property is (properties are)

A

heat capacity

B

resistance

C

molar conductivity

D

All of these
Question 9
1 / -0

The total number of basic groups in the following form of lysine is

A

2

B

3

C

4

D

5
Question 10
1 / -0

In the scheme given below, the total number of intra molecular aldol condensation products formed from ‘Y’ is

A

3

B

2

C

1

D

4