Chemistry

Question 1

What is the structure of ketamine

Answer 1

A benzene ring with the chloride atom in o-position, connected to a cyclohexane ring with a =O in 2nd position and an NHCH3 in the connecting bond b/with the 2 rings

Question 2

Structure of propranolol

Answer 2

NH-CH(CH3)²

Question 3

By using what compound is the reduction of the intermediate done, in the synthesis of Phenylephrine?

Answer 3

NaBH4

Question 4

By using what compound is the red of the intermediate done in the synthesis of salbutamol?

Answer 4

LiAlH4

Question 5

By using what compound is the red of the intermediate done in the synthesis of salbutamol?

Answer 5

LiAlH4

Question 6

Starting materials of ketamine

Answer 6

O-chloro benzonitrile and cyclopentyl MgBr

Question 7

Synthesis of Diazepam

Answer 7

Refer the book

Question 8

Starting material in the synthesis of carbamazepine

Answer 8

Alpha nitro toluene

Question 9

Synthesis of ethosuximide

Answer 9

Refer the book

Question 10

Structure of purine

Answer 10

Pyrimidine (benzene with N in C-2 and C-4) fused with Imidazole (cyclopentane with N in C1 and C3)

Question 11

Structure of coumarin

Answer 11

Benzene fused with furan (double bond between C1 and C2) with =O in C3

Question 12

Structure of acetone

Answer 12

CH3-C (double bond O)-CH3

Question 13

Structure of pyrimidine

Answer 13

Benzene with N in C2 and C4

Question 14

Synthesis of Acetazolamide

Answer 14

Refer the notebook

Question 15

Synthesis of Dibucaine

Answer 15

Refer the notebook

Question 16

Synthesis of Disopyramide

Answer 16

Refer the notebook

Question 17

Synthesis of Methotrexate

Answer 17

Refer the notebook

Question 18

Synthesis of Warfarin

Answer 18

Refer the notebook

Question 19

Synthesis of Chlorthiazide

Answer 19

Refer notebook

Question 20

Synthesis of Furosemide

Answer 20

Refer the notebook

Question 21

What is the structure of Pteridine?

Answer 21

Pyrimidine (benzene with N in ortho and para position) fused with Pyrizine (benzene with N in C1 and C4)

Question 22

Synthesis of Dapsone

Answer 22

Refer the notebook

Question 23

Synthesis of Para-amino salicylic acid

Answer 23

Refer the notebook

Question 24

What are the starting materials for the synthesis of Para amino salicylic acid?

Answer 24

m-Nitro Phenol or 2-Amino Benzoic acid

Question 25

Structure of Tolnaftate

Answer 25

Beta-naphthol - (C=S) - NH(CH3) - m - toluene

Question 26

Structure of Di-ethyl carbamazine citrate

Answer 26

H3C - N (cyclohexane) N - (C=O) - N (C2H5)²

Question 27

Synthesis of Diethylcarbamazine citrate

Answer 27

Refer the notebook

Question 28

What is the decreasing order of alcohols, in terms of their speed of reaction in SN1/SN2 and E1/E2?

Answer 28

For SN1 and E1, 3>2>1 For SN2 and E2, 1>2>3

Question 29

What type of reaction is SN1 and E1?

Answer 29

SN1 is an nucleophilic substitution rxn E1 is an elimination reaction Both of them are UNIMOLECULAR rxns, hence their name

Question 30

What type of reactions are SN2 and E2?

Answer 30

Their are BIMOLECULAR rxns

Question 31

What order of kinetics does SN1 and E1 follow?

Answer 31

First order kinetics

Question 32

What order of kinetics do SN2 and E2 follow?

Answer 32

Second order kinetics

Question 33

What kind of base is used for SN1/SN2 and E1/E2 rxns?

Answer 33

For SN1/E1, a WEAK BASE is used For SN2/E2, a STRONG BASE is used

Question 34

What is Diel's Alder reaction?

Answer 34

Alkene + Conjugated diene --> Cyclohexene

Question 35

What is Ozonolysis?

Answer 35

Alkene + O3 --in the presence of an inert compound like CCl4 --> OZONIDE --when treated with Zn--> produces CARBONYL COMPOUNDS LIKE ALDEHYDE OR KETONE

Question 36

What is the colour given by Ceric Ammonium nitrite test in the presence of an alcohol?

Answer 36

Red colour

Question 37

Victor Mayer test.

Answer 37

The alcohol is reacted with (I2 in RED P) Gives an ALKYL HALIDE (reacted with AgNO3) Gives NITROALKANE (treated with Nitrous acid) The resulting solution is made alkaline by adding CAUSTIC SODA

Question 38

Which is the most commonly used test for distinguishing between 1°,2° and 3° alcohol?

Answer 38

Victor Mayer test

Question 39

What are the colours of the resulting solution in Victor Mayer test?

Answer 39

For 1° alcohol - Red colour For 2° alcohol - Blue For 3° alcohol - No colour

Question 40

What is Lucas Reagent?

Answer 40

ZnCl2 in HCl

Question 41

Name a Polar aprotic solvent.

Answer 41

Di-methyl formamide (DMF)

Question 42

What is Atropi-isomerism?

Answer 42

Isomers that can be interconverted by a single rotation

Question 43

What is a Meso compound?

Answer 43

1. It is an Achiral compound that contains a chirality center 2. Contains a plane of symmetry 3. It is OPTICALLY INACTIVE

Question 44

Why is CCl4 non-polar?

Answer 44

Because the compound is symmetrical

Question 45

How is an IONIC bond formed?

Answer 45

It is formed between an anion and cation. It is mostly seen between metals and non-metals

Question 46

How is a Hydrogen bond formed?

Answer 46

It is formed between a Hydrogen atom and an electronegative atom. It is a type of WEAK, COVALENT BOND

Question 47

How is a Covalent bond formed?

Answer 47

It is formed by the sharing of an electron

Question 48

What is the molecular mass of Glucose?

Answer 48

180 g/mol

Question 49

Diel's Alder reaction is a type of ____ rxn.

Answer 49

It is a Cycloaddition rxn

Question 50

Name some Pericyclic reactions.

Answer 50

Cycloaddition, Electrocyclic and Sigmatropic

Question 51

What is a Sigmatropic reaction?

Answer 51

It is a type of reaction where a sigma bond rearranges itself due to the rearrangement of pi-electrons

Question 52

Dipole moment is measured in. . .

Answer 52

Debye

Question 53

How does Electronegativity inc/dec across the period table?

Answer 53

It INCREASES from (downward to up) It INCREASES from (left to right)