NEET Test 93

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NEET Test 93

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Weekly Quiz Competition

Question 1
4 / -1

The ratio of the value of any colligative property for K₄[Fe(CN)₆] to that of Fe₄[Fe(CN)₆]₃ solution is nearly:

A
0.62

B
0.71

C
1.4

D
1.2

Solution
Question 2
4 / -1

Humulin is being commercially produced from a transgenic species of _______.

A
Rhizobium

B
Saccharomyces

C
Escherichia

D
Mycobacterim

Solution

Humulin is being commercially produced from a transgenic species of escherichia.

Humulin is being commercially produced from a transgenic species of Escherichia. Humulin is a man-made form of hormone that is produced from the body. It was first done by Eli Lily company.

Hence, the correct option is (C).
Question 3
4 / -1

Climate change may have an impact on the following:

A
Agriculture, natural terrestrial ecosystems and water resources

B
Air quality, oceans, arid coastal zones

C
Energy and human health

D
All of the above

Solution

Climate change may have an impact on the following agriculture, natural terrestrial ecosystems and water resources, air quality, oceans, arid coastal zones and energy and human health.

Climate change is a serious problem in the 21st century. Increased temperature resulting from increase in concentration of greenhouse gases can lead to melting of ice and rise in sea levels which may in turn impact coastal areas and some of them may get submerged. Climate change may also lead to changes in cropping pattern and agriculture in general, natural terrestrial systems and water resources. Polluted atmosphere can have a negative impact on human health.

Hence, the correct option is (D).
Question 4
4 / -1

A wire of length 2 m is made from 10 cm³ of copper. A force F is applied so that its length increases by 2 mm. Another wire of length 8 m is made from the same volume of copper. If the force F is applied to it, its length will increase by:

A
0.8 cm

B
1.6 cm

C
2.4 cm

D
3.2 cm

Solution
Question 5
4 / -1

Let denote the electric and magnetic fields in a certain region of space. A proton moving with a velocity along a straight line enters the region and is found to pass through it undeflected. Indicate which of the following statements are consistent with the observations:

A

B

C

D
All of above

Solution
Question 6
4 / -1

A 40μF capacitor is connected to a 200 V,50 Hz ac supply. The rms value of the current in the circuit is, nearly:

A
1.7 A

B
2.05 A

C
2.5 A

D
25.1 A
Question 7
4 / -1

Two spherical bodies of masses ′M′ and ′5M′ and radii ′R′ and ′2R′, respectively, are released in free space with initial separation between their centres equal to ′12R′. If they attract each other due to gravitational force only, then what is the distance covered by the smaller body just before collision?

A
1. 5 R

B
2.5 R

C
4.5 R

D
97.5 R

Solution

Since smaller ball have more acceleration in same time interval, smaller ball will cover more distance.

Hence, the correct option is (D).
Question 8
4 / -1

The process of mitosis can be studied in:

A
Onion root tip

B
Garlic root tip

C
Tendril tip

D
All of the above

Solution

The process of mitosis can be studied in onion root tip, garlic root tip, tendril tip.

Mitosis is a type of division where a cell is divided in such a manner that the daughter cells receive the exact number of chromosomes as the parent cell. The tips of any plant consist of meristematic cells that are actively dividing cells and produce new cells by mitosis. Thus, root tips of onion and garlic are used as a sample for studying mitosis in the laboratory.

Hence, the correct option is (D).
Question 9
4 / -1

How many electrons are present in m shell of an element with atomic number 20:

A
5

B
8

C
15

D
18

Solution

The element having an atomic number 20 is calcium(Ca).

The electronic configuration of Calcium is (2,8,8,2).

K shell - 2 electrons

L shell - 8 electrons

M shell - 8 electrons

N shell - 2 electrons

So, the M shell of an element with an atomic number of 20 has 8 electrons.

Hence, the correct option is (B).
Question 10
4 / -1

Directions For Questions

The color code of a resistance is given below:

...view full instructions

The values of resistance and tolerance, respectively, are

A

B

C

D