JEE Main Test 3

Result

JEE Main Test 3

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

The characteristic of the electrons striking the target in X-ray tube that determine the intensity of X-rays is – (V = constant)

A
Energy

B
Momentum

C
Number incident per sec

D
Mass

Solution

Intensity of x-rays depend on no. of electrons striking target per unit time.
Question 2
4 / -1

Which of the following is non ionisable?

A
[Co(NH₃)₃Cl_3]

B
[CO(NH₃)₄Cl₂]Cl

C
[CO(NH₃)₅Cl]Cl₂

D
[Co(NH₃)₆]Cl₂

Solution

[Co(NH₃)₃ Cl₂] is non ionisable.
Question 3
4 / -1

Total no. of structural isomers possible for compound with molecular formula C₇H₁₆

A
9

B
2

C
4

D
6

Solution

C₇H₆ Total str Isomer = 9
Question 4
4 / -1

If for a matrix A, A³ = I then A^–1 equals -

A
A²

B
A

C
A³

D
None of these

Solution

A³ = I

Taking A^–1 both sides, we get

A^–1 A A² = A^–1 I

⇒A^–1 = A²

∴Option A is correct answer.