NEET 2018 Question Paper with Answer Key PDFs in Gujarati KK

NEET Questions

• 1.

  The major product of the following reaction is:
  $Ph-C(=O)-CH_2CH_2-CN$
  (i) $CH_{3}MgBr (excess) (ii) H_{+}H_{2}O$

  • \(Ph-CH(CH_3)-CH_2-COCH_3\)
    
  • $Ph-C(CH_3)(OH)-CH(CH_3)_2$
    
  • $Ph-CO-CH_2CH_2CH_3$
    
  • $Ph-CH(CH_3)-CH_2-CN$
    
  View Solution

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• 2.

  Given below are two statements:
  Statement I: A hypothetical diatomic molecule with bond order zero is quite stable.
  Statement II: As bond order increases, the bond length increases.
  In the light of the above statements, choose the most appropriate answer from the options given below:

  • Both Statement I and Statement II are false
    
  • Statement I is true but Statement II is false
    
  • Statement I is false but Statement II is true
    
  • Both Statement I and Statement II are true
    
  View Solution

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• 3.

  The correct order of decreasing acidity of the following aliphatic acids is:

  • $CH_{3}COOH$ $>$ (CH_{3})_{2}CHCOOH $>$$ (CH_{3})_{3}CCOOH$ $>$ HCOOH
     

  • $CH_3COOH > (CH_3)_2CHCOOH > (CH_3)_3CCOOH$

  • $HCOOH > (CH_3)_3CCOOH > (CH_3)_2CHCOOH > CH_3COOH$

  • $(CH_3)_3CCOOH > (CH_3)_2CHCOOH > CH_3COOH > HCOOH$

  View Solution

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• 4.

  Identify the suitable reagent for the following conversion: $Ph-C(=O)-OCH_3$ $\longrightarrow$ $Ph-CHO$

  • (i) $AlH(iBu)_{2}$ (ii) $H_{2}O$
     

  • (i) $NaBH_{4}$, (ii) $H^{+}H_{2}O$
     

  • $H_{2}$ $Pd-BaSO_{4}$
     

  • (i) $LiAlH_{4}$, (ii) $H^{+}$$H_{2}O$
     

  View Solution

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• 5.

  Which one of the following compounds does not decolorize bromine water?

  • Phenol
    
  • CH\(_2\)CH\(_2\)
    
  • NH\(_2\)
    
  • Cyclohexane
    
  View Solution

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• 6.

  Predict the major product $ P $ in the following sequence of reactions:
  (i) HBr, benzoyl peroxide 
  (ii) KCN 
  (iii) Na(Hg), $C_{2}H_{5}OH$

  • $C_6H_5-CH_2-CH_3$
    
  • $C_6H_5-CH_2-NH_2$
    
  • $C_6H_5-CH_2-CN$
    
  • $C_6H_5-NH_2$
    
  View Solution