JEE Main Test 108

Result

JEE Main Test 108

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

The carboxyl functional group (— COOH) is present in

A
picric acid

B
barbituric acid

C
ascorbic acid

D
aspirin

Solution
Question 2
4 / -1

Match metal ion Column I with colour Column II in the presence of alizarin.

A
A = 1, B = 4, C = 3, D = 2

B
A = 2, B = 1, C = 4, D = 3

C
A = 3, B = 2, C = 1, D = 4

D
A = 2, B = 3, C = 4, D = 1

Solution

Alizarin is a red pigment present in madder root, used in dying and gives different colors with different colors
i.e.

Sr²⁺→ Pink, Mg²⁺ → Violet

Al³⁺ → Red, Ba²⁺ → blue.
Question 3
4 / -1

Bithional is added to soap as an additive to function as a/an

A
Softener

B
hardener

C
dryer

D
antiseptic

Solution

Bithional is an antiseptic which is generally added to medicated soaps to reduce the odour produced by bacterial decomposition of organic matter on the skin.
Question 4
4 / -1

The differential equation of the family of curves y = e^2x (a cos x + b sin x), where a and b are arbitrary constants, is given by

A
y₂ - 4y₁ + 5y = 0

B
2y₂ - y₁ + 5y = 0

C
y₂ + 4y₁ - 5y = 0

D
y₂ - 2y₁ + 5y = 0

Solution
Question 5
4 / -1

A

B

C

D

Solution
Question 6
4 / -1

|a| = |b| = 5 and the angle between a and b is π/4. The area of the triangle constructed on the vectors a – 2b and 3a + 2b is

A
50

B
50√2

C
50 / √2

D
100

Solution
Question 7
4 / -1

The graph between angle of deviation (δ) and angle of incidence (i) for a triangular prism is represented by

A

B

C

D
Solution
The deviation produced by a prism depends on.
1. Angle of Incidence
2. Angle of prism
3. Wavelength of light used
If the faces of prism on which light Incident and from which it emerges are parallel then the angle of prism will be zero and the angle of deviation is zero. The prism acts as a transparent plate. If ‘µ’ of the material of prism is equal to that of surrounding no refraction takes place at its faces and light passes undeviated i₁ = r₁
Question 8
4 / -1

The distance of a point P(a, b, c) from the X - axis is

A

B

C
a

D

Solution

Point P(a, b, c)

Its distance from x-axis
Question 9
4 / -1

If two +5 D, lenses are mounted at some distance apart, the equivalent power will always he negative, if the distance is

A
greater than 40 cm

B
less than 40 cm

C
equal to 10 cm

D
less than 10 cm

Solution
Question 10
4 / -1

The equation of a plane passing through the line of intersection of the planes x + 2y + 3z = 2, x - y + z = 3 and at a distance 2/√3 from the point (3, 1, -1), is

A
5x - 11y + z = 17

B
√2x + y = 3√2 - 1

C
x + y + z = √3

D
x - √2y = 1 - √2

Solution