EAMCET Chemistry Model Bits – Useful for NEET and JEE Main

Here are some model questions useful for EAMCET, NEET - UG and JEE Main Examinations. The questions are from Organic chemistry.

1. Where C is
1) Yellow dye 2) Orange dye 3) Green dye 4) Blue dye

2. Heating of 2 - Bromo pentane with alcoholic KOH, the major product formed is
1) 1 - pentene 2) 2 - pentene 3) n - pentane n 4) Iso - pentane

3. The correct order of decreasing SN2 reactivity is
1) R2CHX > R3CX > RCH2X 2) RCH2X > R3CX > R2CHX
3) RCH2X > R2CHX > R3CX 4) R3CX > R2CHX > RCH2X

4.major product + Minor product
The major product in this reaction is
1)- o - di chloro benzene o
2) p - di chloro benzene p
3) m - di chloro benzene m
4) both 1 and 2

5. The reaction between Ethanol and PCl5 gives C2H5Cl. The role of Ethanol in this reaction is
1) Electrophile 2) Nucleophile ) both 1 and 2 4) None

6. C2H5Cl on reaction with KCN gives C2H5CN, Where as with AgCN gives C2H5NC as chief products because
1) K and Cl forms ions readily 2) AgCN,KCN are ionic 3) AgCN, KCN are covalent 4) AgCN is covalent, KCN is ionic

7. The use of product formed when CHCl3 reacts with acetone in presence of KOH is
1) hypnotic 2) somnifacient 3) saporific 4) depressant

8. Which of the following gives positive Iodoform test upon reaction with I2 and Naoh?
1) C6H5CH2CH2OH 2) C2H5CHOHC2H5 3) (CH3)2CHCH2OH 4) ph CHOHCH3

9. The alcohol that gives blue colouration in victor meyer's test is

10. The correct order of acidity
1) C6H5OH < H2O < C2H5OH 2) C6H5OH > C2H5OH > H2O
3) C6H5OH > H2O > C2H5OH
4) C6H5OH < C2H5OH < H2O 11. (CH3)3C - Br + CH3ONa ® Main product 1) (CH3)3C - OH 2) (CH3)2C = CH2 3) C3H7 OH 4) C4H9OH KEY: 1)2 2)2 3)3 4)2 5)1 6)4 7)1 8)4 9)1 10)3 11)2

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