NEET 2024 Botany Question Paper with Answers and Solutions PDF T4

NEET Questions

• 1.

  For a salt XY, which is a strong electrolyte, the plot of \(\Lambda_m\) versus \(\sqrt{c}\) has a slope of \(-90.0\text{ S cm}^2\text{ mol}^{-3/2}\text{ L}^{1/2}\) at \(298\text{ K}\). At \(0.01\text{ M}\) concentration of XY, the value of \(\Lambda_m\) is \(145.0\text{ S cm}^2\text{ mol}^{-1}\). The limiting molar conductivity of \(\text{Y}^-\) ion (\(\lambda^\circ_{\text{Y}^-}\), in \(\text{S cm}^2\text{ mol}^{-1}\)) at \(298\text{ K}\) will be (Given: \(\lambda^\circ_{\text{X}^+} = 74.0\text{ S cm}^2\text{ mol}^{-1}\))

  • \(76.0\)
  • \(80.0\)
  • \(100.0\)
  • \(90.0\)
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• 2.

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

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

  एक सीधी रेखा में गतिमान एक कण पर विचार कीजिए, जिसकी समय के फलन के रूप में स्थिति \[ s(t)=-Bt+\gamma \tan\theta t \] है, जहाँ \(\alpha=1\,ms^{-2}\), \(\beta=6\,ms^{-1}\) और \(\gamma=5m\) हैं। \(t=0\) से \(t=6s\) तक कण की औसत चाल \((ms^{-1})\) है :

  • 3
  • 0
  • 12
  • 6
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• 4.

  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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• 5.

  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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• 6.

  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:

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