NEET 2023 Chemistry Question Paper with Solutions PDF G1

NEET Questions

• 1.

  In an adiabatic expansion, the temperature of one mole of an ideal monoatomic gas \((\gamma=\frac{5}{3})\) decreases from \(60\,\text{K}\) to \(50\,\text{K}\). The work done by the gas in the process is: (Take the universal gas constant as \(R=8.3\,\text{J mol}^{-1}\text{K}^{-1}\))

  • \(166\,\text{J}\)
  • \(41.5\,\text{J}\)
  • \(83\,\text{J}\)
  • \(124.5\,\text{J}\)
  View Solution

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• 2.

  Consider that \(\sigma_s\), \(k_B\), and \(b\) represent Stefan-Boltzmann constant, Boltzmann constant, and Wien's displacement law constant, respectively. The dimension of \(\sigma_s k_B^{-1} b\) is:

  • \([L^{-1}T^{-1}K^{-4}]\)
  • \([L^{-1}T^{-1}K^{-2}]\)
  • \([L^{-1}K^{-2}]\)
  • \([L^{-1}T^{-1}K^{-3}]\)
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• 3.

  निम्नलिखित में से कौन एक एन्जियोस्पर्म (आवृतबीजी) के मादा युग्मकोद्भिद (मेगागैमेटोफाइट) में अंडे के निषेचन के लिए परागनलिका को मार्गदर्शन करने में सहायता करता है?

  • केंद्रीय कोशिकाएँ
  • ध्रुवीय केंद्रक
  • प्रतिव्यासजन कोशिकाएँ (Antipodals)
  • सहायक कोशिकाएँ (Synergids)
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• 4.

  \( \sigma_s \), \( k_B \) અને \( b \) અનુક્રમે સ્ટેફન-બોલ્ટ્ઝમેન સ્થિરાંક, બોલ્ટ્ઝમેન સ્થિરાંક અને વીનના વિસ્થાપન નિયમના સ્થિરાંકને દર્શાવે છે. \( \sigma_s k_B^{-1} b \) નું પરિમાણ છે:

  • \( [L^{-1}T^{-1}K^{-4}] \)
  • \( [L^{-1}T^{-1}K^{-2}] \)
  • \( [L^{-1}K^{-2}] \)
  • \( [L^{-1}T^{-1}K^{-3}] \)
  View Solution

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• 5.

  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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• 6.

  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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