NEET 2023 Chemistry Question Paper with Solutions PDF H5

NEET Questions

• 1.

  Consider a particle moving along a straight line, whose position as a function of time is given by \[ s(t)=\alpha t^2-\beta t+\gamma \] where \(\alpha=1\,\text{m s}^{-2}\), \(\beta=6\,\text{m s}^{-1}\) and \(\gamma=5\,\text{m}\). The average speed of the particle, in \(\text{m s}^{-1}\), from \(t=0\) to \(t=6\,\text{s}\) is:

  • \(0\)
  • \(12\)
  • \(6\)
  • \(3\)
  View Solution

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• 2.

  निम्नलिखित आरेख, ऊर्ध्वाधर ऊपर फेंकी गई एक गेंद का ऊपर जाते हुए और वापस नीचे गिरते हुए वेग (v) का समय (t) के साथ परिवर्तन को दर्शाते हैं। निम्नलिखित में से कौन-सा/से आरेख सही है/हैं? 
   

  

  • केवल C
    
  • केवल A और E
    
  • केवल D
    
  • केवल B
    
  View Solution

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• 3.

  10 मिलियन कोशिकाओं की एक population पर विचार करें। यदि प्रति व्यक्ति जन्म दर 0.002 (प्रति इकाई समय) और प्रति व्यक्ति मृत्यु दर 0.002 (प्रति इकाई समय) दी गई है, तो 10 पीढ़ियों के बाद कोशिकाओं की अपेक्षित संख्या ________ होगी।

  • 10 मिलियन
  • 100 मिलियन
  • 1 मिलियन
  • 5 मिलियन
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• 4.

  Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
  Assertion A: In an experiment, Mendel observed that the \(F_1\) progeny plants are all tall and none are dwarf.
  Reason R: Stem height is a contrasting trait, with tall being dominant and dwarf being recessive.
  In the light of the above statements, choose the most appropriate answer from the options given below:

  • A is not correct but R is correct
  • Both A and R are correct and R is the correct explanation of A
  • Both A and R are correct but R is not the correct explanation of A
  • A is correct but R is not correct
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• 5.

  A thin horizontal disc is rotating about a vertical axis passing through its fixed centre \(O\). Its angular momentum is \(L_A\) and \(L_B\) computed about points \(A\) and \(B\), respectively, where \(OB=2\times OA\). The value of \[ \frac{L_A}{L_B} \] is:

  

  • \(2\)
  • \(\frac14\)
  • \(\frac12\)
  • \(1\)
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• 6.

  For a zero-order reaction, where \(k = 1.0\ mol\ L^{-1}\ min^{-1}\). If the initial concentration of A is \(2\ M\), then the time taken for completion of \(75\%\) of the reaction will be

  • \(2.0\ min\)
  • \(1.5\ min\)
  • \(0.75\ min\)
  • \(1.0\ min\)
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