Consider the given four statements:

1. Blood plasma contains significant amounts of antibodies to fight corona virus.
2. Blood plasma is a pale-yellow in colour.
3. Blood plasma contains hemoglobin.
4. Any person can donate blood plasma to any other person affected by corona virus.

• (a) 1 and 3
• (b) 3 and 4
• (c) 1 and 3
• (d) 2 and 4

Match List-I with List-II:

List-I:
A. Litmus
B. Nitrogen
C. Calcium Hydroxyapatite
D. Hydrogen Peroxide

List-II:
1. Tooth enamel
2. Anti microbial agent
3. Chips sealed in packet
4. Lichen

• (a) A-4, B-3, C-1, D-2
• (b) A-4, B-3, C-2, D-1
• (c) A-3, B-4, C-1, D-2
• (d) A-2, B-3, C-4, D-1

Match List-I with List-II:

List-I:
A. S.I. unit of power of a lens
B. S.I. unit of electric potential difference
C. Potential difference between two points
D. S.I. unit of electric charge

List-II:
1. V
2. Coulomb
3. Diopter
4. W/Q

• (a) A-4, B-3, C-2, D-1
• (b) A-3, B-4, C-1, D-2
• (c) A-2, B-3, C-4, D-1
• (d) A-3, B-1, C-4, D-2

Match List-I with List-II:

List-I:
A. Peristaltic movement
B. Gastric glands
C. Amylase
D. Bile juice

List-II:
1. Saliva
2. Alimentary canal
3. Inner lining of stomach
4. Liver

• (a) A-4, B-3, C-2, D-1
• (b) A-3, B-4, C-1, D-2
• (c) A-1, B-2, C-3, D-4
• (d) A-2, B-3, C-1, D-4

Match List-I with List-II:

List-I:
A. Gregor Mendel
B. Harold C. Urey
C. Charles Darwin
D. Dmitri-I-Mendeleev

List-II:
1. Role of earthworms in soil fertility
2. University of Vienna
3. Origin of organic molecules on earth
4. Periodic table

• (a) A-3, B-4, C-2, D-1
• (b) A-2, B-3, C-1, D-4
• (c) A-1, B-2, C-3, D-4
• (d) A-4, B-3, C-2, D-1

Which of the following statement is not correct?

• (a) Calcium oxide reacts vigorously with water to produce lime
• (b) Slaked lime slowly creates a layer of calcium nitrate on the walls during white washing
• (c) Silver chloride is sensitive to sunlight
• (d) Decomposition reactions require energy for breaking down of reactants

Which of the following statement is correct?

• (a) A very small opaque object does not change the straight path of light
• (b) Convex mirrors are generally used in torches
• (c) The mass density of kerosene is less than that of water
• (d) The ability of a medium to reflect light is expressed as optical density

Which of the following statement is not correct?

• (a) During dental cavities, bacteria act on saliva to produce acids
• (b) Blood pressure is much greater in arteries than in veins
• (c) Normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg
• (d) Dental plaque is caused by demineralization of enamel

Which of the following statement is correct?

• (a) Cell vacuoles do not store waste materials
• (b) Water transport in plants occurs across xylem
• (c) Breakdown of pyruvate in yeast in the absence of oxygen yields ethanol
• (d) Energy released from the rupture of terminal phosphate group of ATP is equivalent to 35.5 kJ/mol