HSSC CLERK EXAM (11.12.2016) (Shift-I)

91. In Electrochemical process dowhich takes place at anode

(1) Oxidation
(2) Reduction
(3) Corrosion
(4) Redox process

Correct Answer: (4) Redox process

Solution:Oxidation takes place at anode.

92. Which acid is found in tomato?

(1) Acetic acid
(2) Formic acid
(3) Tartric acid
(4) Cystic acid

Correct Answer: (4) Cystic acid

Solution:Citric acid Tomato

Acetic acid - Vinegar

Formic acid - Red ant

Tartaric acid - Wine (grapes)

Oxalic acid - Sarel tree

93. Which chemical is used as disinfectant of swimmingpool water.

(1) Bromine
(2) Chloroform
(3) Chlorine
(4) Potassium permanganate

Correct Answer: (3) Chlorine

Solution:Chlorine is used for water purification processes.

94. What is the name of the organelle in which photosynthesis takes place

(1) Leucoplast
(2) Chloroplast
(3) Chromoplast
(4) None of these

Correct Answer: (2) Chloroplast

Solution:Photosynthesis takes place row in chloroplast in the presence of light. Chloroplast converts light energy into chemical energy. Oxygen is the by product of photosynthesis.

95. Which is the largest artery in the human body.

(1) phrenic artery
(2) Pulmonary artery
(3) Vena cava
(4) Aorta

Correct Answer: (4) Aorta

Solution:Aorta is the largest artery in the body.

96. Which process is involved in dialysis process

(1) Osmosis
(2) Reverse Osmosis
(3) Plasmolysis
(4) Haemolysis

Correct Answer: (1) Osmosis

Solution:Dialysis is a blood purifier process. In this osmosis takes place.

97. Organelle which is involved in protein synthesis.

(1) Ribosome
(2) Nucleic acid
(3) Mitochondria
(4) Chlorophyll

Correct Answer: (1) Ribosome

Solution:Ribosomes are involved in protein synthesis which are attached to Endoplasmic reticulum, in prokaryotic cell 70 ribosomes are found while in Eukaryotic cell 80s ribosome found.

98. Voltmater is generally used to measure potential difference between two ends of the conductor electic circuit. Voltmater is generally connected in electric circuit.

(1) Parallel
(2) Series
(3) Parallel and series
(4) May be parallel or series

Correct Answer: (1) Parallel

Solution:Voltmeter is connected parallel to electric circuit.

99. The size of the image formed by plane mirror is.

(1) equal to that of the object
(2) smaller than that of the object
(3) larger than that of the ob-ject
(4) Slightly smaller than that of the object

Correct Answer: (1) equal to that of the object

Solution:Size of image is equal and erectile to that of the object formed in plane mirror.

100. Stars twinkle due to.

(1) Reflection of light
(2) Dispersion of light
(3) Rarefaction of light
(4) Refraction of light

Correct Answer: (4) Refraction of light

Solution:Stars twinkle due to refraction of light. The change of the direction of light when light passes from one medium to another is called refraction of light.