Try 10 of the 200 NEET 2022 questions on Lakshyank below. Tap an option to see if you are right. Marked here as: +4 correct, −1 wrong, 0 skipped.
Match List-I (Electromagnetic waves) with List-II (Wavelength). List-I: A. AM radio waves B. Microwaves C. Infrared radiations D. X-rays List-II: I. 10⁻¹⁰ m II. 10² m III. 10⁻² m IV. 10⁻⁴ m Choose the correct answer from the options given below:
Correct!
The answer is D, A-II, B-III, C-IV, D-I.
The peak voltage of the ac source is equal to:
Correct!
The answer is C, √2 times the rms value of the ac source.
From Ampere's circuital law for a long straight wire of circular cross-section carrying a steady current, the variation of magnetic field in the inside and outside region of the wire is:
Correct!
The answer is C, A linearly increasing function of distance r upto the boundary of the wire and then decreasing one with 1/r dependence for the outside region..
Which of the following statement is not correct about diborane?
Correct!
The answer is D, Both the Boron atoms are sp² hybridised..
RMgX + CO₂ —(dry ether)→ Y —(H₃O⁺)→ RCOOH What is Y in the above reaction?
Correct!
The answer is A, RCOO⁻Mg⁺X.
3O₂(g) ⇌ 2O₃(g) For the above reaction at 298 K, Kc is found to be 3.0 × 10⁻⁵⁹. If the concentration of O₂ at equilibrium is 0.040 M then concentration of O₃ in M is:
Correct!
The answer is A, 4.38 × 10⁻³².
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Polymerase chain reaction is used in DNA amplification. Reason (R): The ampicillin resistant gene is used as a selectable marker to check transformation In the light of the above statements, choose the correct answer from the options given below:
Correct!
The answer is B, Both (A) and (R) are correct but (R) is not the correct explanation of (A).
Match the plant with the kind of life cycle it exhibits: List-I: A. Spirogyra B. Fern C. Funaria D. Cycas List-II: I. Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte II. Dominant haploid free-living gametophyte III. Dominant diploid sporophyte alternating with reduced gametophyte called prothallus IV. Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte Choose the correct answer from the options given below:
Correct!
The answer is B, A-II, B-III, C-IV, D-I.
Given below are two statements: Statement I: Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence. Statement II: Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site. In the light of the above statements, choose the most appropriate answer from the options given below:
Correct!
The answer is A, Both Statement I and Statement II are correct.
Natural selection where more individuals acquire specific character value other than the mean character value, leads to
Correct!
The answer is B, Directional change.
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