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NEET Class XII Weekly Mock 16

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Question 1

Which of the following represent maximum number of species among global biodiversity?

Question 2

Which of the following isolation is important for speciation

Question 3

Species do not overlap but continuous (touch each other) is known as

Question 4

The term ‘biocoenosis’ was proposed by

Question 5

Niche is defined as the

Question 6

Reaction by which Benzaldehyde canot be prepared :

Question 7

Which one is most reactive towards Nucleophilic addition reaction ?

Question 8

The correct structure of the product A formed in the reaction

Question 9

A single compound of the structure is

obtainable from ozonolysis of which of the following cyclic compounds?

Question 10

Benzaldehyde and malonic acid react to give

Question 11

CH₃MgBr + CH₂ = CH – $Description: Description: D:\GradeStack Courses\JEE Mains (Sent by Ravi)\AIPMT Part Tests\AIPMT-Part-Test-13_files\image203.png$ – H $Description: Description: D:\GradeStack Courses\JEE Mains (Sent by Ravi)\AIPMT Part Tests\AIPMT-Part-Test-13_files\image204.png$ product

Question 12

A certain mass of Hydrogen is changed to Helium by the process of fusion. The Mass defect in fusion reaction is 0.02866 u. The energy liberated per u is : (given 1u = 931 MeV)

Question 13

Nuclear reactor in which uranium-235 is used as fuel, uses 2 kg of uranium-235 in 30 days. Then power output of the reactor will be (given: Energy released per fission = 185 MeV)

Question 14

The binding energies per nucleon for a deuteron and an α-particle are x₁ and x₂ respectively. What will be the energy Q released in the reaction
₁H² + ₁H² → ₂He⁴ + Q

Question 15

x-rays of wavelength 0.82 Å fall on a metal plate. Find wavelength associated with photoelectron emitted neglect work function of the metal. Given h = 6.6 × 10^–34 Js, C = 3 × 10⁸ m/s

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Apr 17NEET & AIIMS