Chemistry Test 89

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Chemistry Test 89

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Weekly Quiz Competition

Question 1
4 / -1

Incorrect statement from the following is:

A
The reducing half in lactose is β-galactose

B
Cellulose is polymer of β-glucose

C
Starch is polymer of α-glucose

D
In amylose glucose residues are connected by 1,6-glycosidic linkage

Solution

Amylose is the linear polymer of α-D glucose formed by 1 : 4 glycosidic linkage.

Question 2

4 / -1

Match the vitamins given in Column-I with the deficiency diseases listed in Column-II

Column-I	Column-II
(a) Vitamin A	(p) Osteomalacia
(b) Vitamin C	(q) Beri beri
(c) Vitamin D	(r) Scurvy
(d) Vitamin B₁	(s) Xerophthalmia

a → p; b → q; c → s; d → r

a → s; b → r; c → p; d → q

a → s; b → p; c → r; d → q

a → p; b → r; c → q; d → s

Question 3

4 / -1

Match the items given in Column-I with that given in Column-II.

Column-I		Column-II
(A)	Nucleotide	(p)	Linkage in carbohydrates
(B)	Peptide linkage	(q)	Linkage in proteins
(C)	Glycoside linkage	(r)	A sugar and heterocyclic basecombination
(D)	Nucleoside	(s)	The monomeric unit in nucleic acids

A → s; B → q; C → p; D → r

A → q; B → p; C → s; D → r

A → p; B → s; C → r; D → q

A → s; B → r; C → q; D → p

Question 4
4 / -1

The cationic detergent that is used in hair conditioner is :

A
Sodium dodecyl benzene sulphonate

B
Sodium lauryl sulphate

C
Cetyltrimethylammonium bromide

D
Sodium steary sulphate
Question 5
4 / -1

Which forms the part of hazy fumes of photochemical smog

A
SO₂

B
Aldehydes

C
PAN formation

D
Nitrogen dioxide
Question 6
4 / -1

Arsenic sulphide sol has negative charge. The maximum coagulating power of precipitating it is of :-

A
Zn (NO₃)₂

B
Na₃PO₄

C
ZnSO₄

D
AlCl₃

Solution

According Hardy-Schulze rule, more is the opposite charge on ion, greater is its coagulating power.
Question 7
4 / -1

Which of the following electrolyte will be most effective in coagulation of negative sol :-

A
KNO₃

B
K₄[Fe(CN)₆]

C
Na₃PO₄

D
MgCl₂
Question 8
4 / -1

The gold numbers of protective colloids A, B, C and D are 0.04, 0.004, 10 and 40 respectively. The protective powers A, B, C and D are in the order:-

A
A > B > C > D

B
B > A > C > D

C
D > C > A > B

D
D > C > B > A

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Re-Attempt Weekly Quiz Competition

Chemistry Test 89

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Chemistry Test 89

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SHARING IS CARING

Question 1

The reducing half in lactose is β-galactose

Cellulose is polymer of β-glucose

Starch is polymer of α-glucose

In amylose glucose residues are connected by 1,6-glycosidic linkage

Solution

Question 2

a → p; b → q; c → s; d → r

a → s; b → r; c → p; d → q

a → s; b → p; c → r; d → q

a → p; b → r; c → q; d → s

Question 3

A → s; B → q; C → p; D → r

A → q; B → p; C → s; D → r

A → p; B → s; C → r; D → q

A → s; B → r; C → q; D → p

Question 4

Sodium dodecyl benzene sulphonate

Sodium lauryl sulphate

Cetyltrimethylammonium bromide

Sodium steary sulphate

Question 5

SO2

Aldehydes

PAN formation

Nitrogen dioxide

Question 6

Zn (NO3)2

Na3PO4

ZnSO4

AlCl3

Solution

Question 7

KNO3

K4[Fe(CN)6]

Na3PO4

MgCl2

Question 8

A > B > C > D

B > A > C > D

D > C > A > B

D > C > B > A

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SO₂

Zn (NO₃)₂

Na₃PO₄

ZnSO₄

AlCl₃

KNO₃

K₄[Fe(CN)₆]

Na₃PO₄

MgCl₂