NEET Test 71

Result

NEET Test 71

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Weekly Quiz Competition

Question 1
4 / -1

What does “T” stands for in DPT vaccine

A
Tuberculosis

B
Typhoid

C
Tetanus

D
Trachoma
Question 2
4 / -1

Which one of the following best examplify transfer of material and energy from one ecosystem to other ecosystem?

A
Harvesting of fishes

B
Game hunting in Savannah

C
Grazing of pastureland

D
Silvicultural practices in a woodland
Question 3
4 / -1

If pea plant is represented by Rr, ______ information is obtained.

A
genotypic

B
about number of chromosomes

C
phenotypic

D
both (1) and (2)

Solution

Both the genes (Rr of a character are unlike and is said to be heterozygous or hybrid.
Question 4
4 / -1

The metal that is found in green colouring pigment chlorophyll of plants is:

A
Al

B
Na

C
Mg

D
Fe
Question 5
4 / -1

Compound A, C₈H₁₀O, is found to react with

NaOI (produced by reacting Y with NaOH) and

yields a yellow precipitate with characteristic

smell.

A and Y are respectively

A

B

C

D

Solution

Option (1) is secondary alcohol which on oxidation gives phenylmethyl ketone (Acetophenone). This on reaction with I₂ and NaOH form iodoform and sodium benzoate.

2NaOH + I₂→ NaOl + Nal + H₂O
Question 6
4 / -1

4 capacitors of each of capacity 3μF are connected as shown in the figure. What will be the ratio of equivalent capacitance between A and B and between A and C?

A
3:2

B
2:3

C
3:4

D
4:3

Solution
Question 7
4 / -1

Centre of mass of a system on space that __f particles is a point i__.

A
always coincides with the geometric centre

B
always lie within the system

C
always lie out of the system

D
may or may not coincide with the geometric centre

Solution

Centre of mass of a rigid body or a system of particles is a point in space that may or may not coincide with the geometric centre of the body or system.
Question 8
4 / -1

A heat engine absorbs heat Q₁ and Q₂ at temperature T₁ and T₂ respectively. Work done by the engine is (Q₁ + Q₂). This data

A
does not violate I^st law of thermodynamics

B
violates I^st law of thermodynamics if Q₂ is -ve

C
violates I^st law of thermodynamics if Q₁ is -ve

D
violates I^st law of thermodynamics

Solution

It violates the II law of thermodynamics but not the first law of thermodynamics.
Question 9
4 / -1

If three capacitors each of capacity 1μF are connected in such a way that the resultant capacity is 1.5 μF, then which of the following statement is true?

A
All the three are connected in parallel

B
All the three are connected in series

C
Two of them are in series and then connected in parallel to the third

D
Two of them are in parallel and connected in series to the third

Solution

The circuit can be drawn as shown below.
Question 10
4 / -1

Organism of pure line is that which produce individuals of _____.

A
intermediate type

B
its own characters

C
recessive characters

D
Dominant characters

Solution

Generations of homozygous individuals which produce offsprings of only one type is organism of pure line.