Sindh MDCAT 2022 Paper Page 4

Sindh MDCAT 2022 Paper

61- It provides protection of coastline from storm, shelter for marine organisms, assist in carbon & nitrogen fixing:

A. Coral reefs

B. Medusa

C. Aurelia

D. Hydra

View Answer

Answer : A. Coral reefs

Description

62- Each enzyme has a dimple or groove at a specific side called:

A. Co-factor

B. Active site

C. Non-active site

D. Prosthetic group

View Answer

Answer : B. Active site

Description

63- Light reaction of photosynthesis takes place in:

A. Cristae

B. Stroma

C. Cisternae

D. Thylakoid

View Answer

Answer : D. Thylakoid

Description

64- The vacated vesicular follicle forms a fatty yellow structure on ovary called:

A. Graafian luteum

B. Corpus luteum

C. Ruptured ovum

D. Progesterone

View Answer

Answer : B. Corpus luteum

Description

65- Achatina fulica is an African giant snail that is dangerous:

A. Agricultural pest

B. For silk worm

C. Apiculture pest

D. Sericulture pest

View Answer

Answer : A. Agricultural pest

Description

66- The enzyme which is used in Calvin cycle is:

A. Oxidase

B. Reductase

C. Isomerase

D. Rubisco

View Answer

Answer : D. Rubisco

Description

67- The flexible articulating cartilage between the joints become denatured by the deposition of calcium which makes the bone hard. The disease is:

A. Disc slip

B. Rickets

C. Spondylosis

D. Arthritis

View Answer

Answer : D. Arthritis

Description

68- HB molecules in each RBCs:

A. 150 million

B. 180 million

C. 280 million

D. 380 million

View Answer

Answer : B. 180 million

Description

69- In exothermic reaction by decreasing the temperature equilibrium constant:

A. Same

B. Reaction move backward

C. Decrease

D. Increase

View Answer

Answer : D. Increase

Description

70- Viscosity is measure of:

A. Resistance in the flow of liquid

B. Volume

C. Fluidity of liquid

D. Density

View Answer

Answer : A. Resistance in the flow of liquid

Description

71- Acetone gives:

A. Fehling solution test positive

B. Silver mirror tests positive

C. Luca’s test positive

D. Iodoform test positive

View Answer

Answer : A. Fehling solution test positive

Description

72- The equation v=RH [1/2^2 -1/n^2] where n>2 is the equation of H spectrum for ?

A. Pfund series

B. Bracket series

C. Lyman series

D. Balmer series

View Answer

Answer : D. Balmer series

Description

73- The equation of the first law thermodynamics q=E+W will reduce at constant volume to:

A. E+W

B. Q=E

C. Q=E+W

D. Q=PGV

View Answer

Answer : B. Q=E

Description

74- The electrolysis of dilute acid solution gives:

A. Cl2 at cathode and H2 at anode

B. H2 at cathode and Cl2 at anode

C. H2 at anode and Na at cathode

D. H2 at anode and O2 at cathode

View Answer

Answer : B. H2 at cathode and Cl2 at anode

Description

75- Ostwald’s process is the oxidation of:

A. NH3

B. CL2

C. HNO3

D. H2SO4

View Answer

Answer : A. NH3

Description

76- The dipolar moment of CO2 is zero because:

A. Linear

B. Triatomic

C. Pyramidal

D. CO2 is polar

View Answer

Answer : A. Linear

Description

77- The two crystals NaNO3 and CaCO3 are both trigonal, they are:

A. Polymorphs

B. Isomers

C. Enantiomers

D. Isomorph

View Answer

Answer : D. Isomorph

Description

78- Nylon 6,6 is a:

A. Addition polymer

B. Condensation polymer

C. Condensation polymer of hexandioic acid and 1,6 diamine hexane

D. It is a carboxylic acid

View Answer

Answer : C. Condensation polymer of hexandioic acid and 1,6 diamine hexane

Description

79- Ethene (H3C=CCH3) has hybridization of C-atom:

A. dsp3

B. sp3

C. d2sp3

D. sp2

View Answer

Answer : D. sp2

Description

80- The kinetic molecular theory of gases explains:

A. Mass number

B. Atoms atoms no

C. The behaviors of gases

D. Electrons

View Answer

Answer : C. The behaviors of gases

Description