NEET 2018 Question Paper with Answer Key PDFs in Bengali XX

NEET Questions

• 1.

  A submarine is designed to withstand an absolute pressure of 100 atm. How deep can it go below the water surface? (Consider the density of water = 1000 kg m⁻³, 1 atm = 1 $\times$ 10⁵ Pa and g = 10 m/s²)
  

  • 990 m
    
  • 9000 m
    
  • 99 m
    
  • 9900 m
  View Solution

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• 2.

  The WBC count of a person's blood sample is 8000/cu.mm. How many eosinophils and lymphocytes would be in the same blood sample approximately ?

  • 300 - 500/cu.mm and 500 - 700/cu.mm, respectively
    
  • 300 - 500/cu.mm and 1200 - 1500/cu.mm, respectively
    
  • 100 - 120/cu.mm and 160 - 200/cu.mm, respectively
    
  • 160 - 240/cu.mm and 1600 - 2000/cu.mm, respectively
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• 3.

  When \(1\ dm^3\) of \(CO_2\) gas is passed over hot coke, the volume of gaseous mixture after complete reaction at STP becomes \(1.4\ dm^3\). The composition of the gaseous mixture at STP is:

  • \(0.6\ dm^3\) of \(CO\), \(0.8\ dm^3\) of \(CO_2\)
    
  • \(0.6\ dm^3\) of \(CO\), \(0.9\ dm^3\) of \(CO_2\)
    
  • \(0.8\ dm^3\) of \(CO\), \(0.6\ dm^3\) of \(CO_2\)
    
  • \(0.8\ dm^3\) of \(CO\), \(0.7\ dm^3\) of \(CO_2\)
  View Solution

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• 4.

  एक एकसमान धात्विक तार, जिसका प्रतिरोध 4Ω है, को एक वर्गाकार लूप (ABCD) (चित्र देखें) के रूप में मोड़ा गया। एक 2Ω का प्रतिरोध बिंदुओं B और D के बीच जोड़ा गया और एक 2 V की बैटरी को बिंदुओं A और C के आरपार जोड़ा गया जैसा कि चित्र में दिखाया गया है। अब धारा (I) का मान है: 
   

  

  • 2 A
    
  • 4 A
    
  • 8 A
  • 4.5 A
  View Solution

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• 5.

  The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in new unit is: ____.
  

  • 500
    
  • 3 $\times$ 10⁸
    
  • 400
    
  • 3 $\times$ 10¹⁰
  View Solution

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• 6.

  The number of hydrogen atoms present in \(5.4\text{ g}\) of urea is: \[ \text{Given: Molar mass of urea }=60\text{ g mol}^{-1} \] \[ N_A=6.022\times10^{23}\text{ particles mol}^{-1} \]

  • \(2.168\times10^{22}\)
    
  • \(2.168\times10^{23}\)
    
  • \(1.084\times10^{22}\)
    
  • \(1.084\times10^{23}\)
  View Solution