Important MCQs BCQs from past papers and model paper for pharmacognosy preparation

 VOLATILE OILS
Select the correct answer out of the given choices
Terpenes made up of : 
a) Calcierene b) Pseudopriene
c) Neoprene d) Isoprene
Ans: d
Molecular formula for isoprene unit is: 
a) C8 H8 b) C3 H8
 c) C5 H8 d) C6 H6
 Ans: c
Example of alcohol volatile oil: 
a) Peppermint b) Cinnamon
c) Lemon peel d) Orange peel
  Ans: a
Which is not an example of ester volatile oil? 
a) Gaultheria b) Lavender
c) Muster d) Cinnamon
Ans: d
Drug is not an example of phenol volatile oil: 
a) Clove b) Anise
c) Creosote d) Thyme
Ans: b
The major terpenoid in clove oil: 
a) Eugenol b) Santalol
c) Anethol d) Menthol
Ans: a
Triterpenes contain number of isoprene units: 
a) Four b) Five
c) Six d) Seven
Ans: c
Diterpenes contain number of isoprene units: 
a) Three b) Four
c) Five d) Six
Ans: b
Monoterpenes contain number of isoprene units: 
a) One b) Three
c) Two d) Four
Ans: c
Lemon grass oil is obtained from : 
a) Cymbopogon flexuousus b) Cinnamonum camphora
c) Eucalyptus globules d) Chenopodium ambrosioides
Ans: a
Beta ionine is starting material for synthesis of: 
a) Vitamin K b) Vitamin B1
c) Vitamin A d) Vitamin D
Ans: c
Cymbopogon flexuousus belongs to family: 
a) Graminnae b) Liliaceae
c) Legumniosae d) Loganaceae
Ans: a
Synonym for peppermint oil is: 
a) Mentha oil b) Oleum terbinthae
c) Eucalyptus d) Chenoposan
Ans: a
Peppermint oil contains chiefly: 
a) I-menthol b) d-menthol
c) Citral d) Cineole
Ans: a
Cardamom belongs to family: 
a) Liliaceae b) Loganaceae
c) Apocyanaceae d) Zingiberaceae
Ans: d
Allepy variety of cardamom has approx. size: 
a) 4 to 10 mm b) 2 to 4 mm
c) 8 to 20 mm d) 6 to 12 mm
Ans: c
The chief active constituent of fennel: 
a) Carvone b) Borneol
c) Dill-Apiole d) Fenchone
Ans: d
Biological source for Nutmeg: 
a) foeniculum vulgare b) Coriandrum sativum
c) Myristica fragrans d) Elettaria cardamom
Ans: c


Nutmeg belongs to family: 
a) Luraceae b) Umbelliferae
c) Myristicaceae d) Zingiberaceae
Ans: c
Drug, which does not, belong to family umbelliferae: 
a) Caraway b) Coriander
c) Ajowan d) Cardamom
  Ans: d
Nutmeg contains percentage of volatile oil: 
a) 5 to 16% b) 10 to 20 %
c) 15 to 25% d) 20 to 30 %
Ans: a
Fennel contains percentage of volatile oil: 
a) 3 to 7 % b) 7 to 10%
c) 10 to 13 % d) 13 to 155
Ans: a
Nutmeg should contain volatile oil not less than: 
a) 1 % w/v b) 2% w/v
c) 3 % w/v d) 5 % w/v
Ans: d
Volatile oil in Coriander should not less than: 
a) 0.3% b) 3.0%
c) 3.3% d) 4.4%
Ans: a
Cardamon contains volatile oil not less than: 
a) 1% b) 0.4 %
c) 2.0% d) 4.0 %
Ans: d
Peppermint oil contains important terpenoid: 
a) Geraniol b) Anethol
c) Menthol d) Eugenol
 Ans: c
The clove oil contains important terpenoid: 
a) Eugenol b) Anethol
c) Menthol d) Cineol
Ans: a


Fennel contains type of stomata: 
a) Diacytic b) Actinocytic
c) Anisocytic d) Anomocytic
Ans: d
Exhuasted fennel is identified by absence of : 
a) Fenchone b) Anethol
c) Carvone d) Cineol
Ans: a
Which variety of fennel contains least percentage of volatile oil content?
a) Indian b) Saxony
c) French sweet d) Japanese
Ans: a
The fat of nutmeg is known as: 
a) Ghee b) Nutmeg oil
c) Nutmeg butter d) Nutmeg protein
Ans: c
Cinnamom bark does not contain: 
a) Cinnamaldehyde b) Tannins
c) Coumarin d) Benzaldehyde
Ans: c
The biological source of cinnamon: 
a) Cinnamomum zeylanicum b) Cinnamomum cassia blume
c) Cinnamomum burmanii d) Cinnamomum loireirii
Ans: c
Biological source of Garlic is: 
a) Allium sativum b) Pinus roxburghii
c) Thymus vulgaris d) Santalum album
Ans: a
______ is not the use of Allium sativum.
a) Carminative b) Aphrodisiac
c) Atherosclerosis d) Antiulcer
Ans: d
The family of Ocimum sanctum: 
a) Labiatae b) Liliaceae
c) Lauraceae d) Loganaceae
Ans: a

Holy basil is the synonym for drug: 
a) Alpinia officinarum b) Allium sativum
c) Nardostachys jatamonum d) Ocium sanctum
Ans: d
Alkaloid present in Black pepper is: 
a) Caryophyllene b) Cinnamaldehyde
c) 1-phellandrene d) Piperine
Ans: d
Drug which does not belong to family Umbelliferae: 
a) Cumin b) Anise
c) Lavender oil d) Celery
Ans: c
The percentage of clove oil in clove should not be less than: 
a) 15% b) 10%
c) 5% d) 1%
Ans: a
Does not occur in clove: 
a) Starch b) Volatile oil
c) Tannins d) Resins
Ans: a
When transverse section of clove is treated with potassium hydroxide solution, it gives: 
Strong odor of volatile oil
H2 S gas is evolved
CO2 is evolved
Needle shaped crystals of potassium eugeonate
Ans: d
Clove oil is used in the manufacturing of : 
a) Salicylic acid b) Vanillin
c) Cinnamic acid d) Benzoic acid
Ans: b
Which is not used as an adulterant for clove?
a) Mother clove b) Blown clove
c) Clove stalk d) Pale clove
Ans: d
Clove stalk contains approximate percentage of volatile oil: 
a) 5% b) 10%
c) 15% d) 20%
  Ans: a
Oil which does not belong to alcohol class: 
a) Nutmeg b) Sandalwood
c) Lemon grass d) Lavender
Ans: c
The oil, which is not belonging to aldehyde class: 
a) Dill oil b) Cinnamon oil
c) Lemon grass oil d) Lemon oil
Ans: a
The oil, which is having counter irritant property: 
a) Thyme b) Turpentine oil
c) Peppermint d) Orange oil
Ans: b
Fennel contains percentage of volatile oil: 
a) 10 to 20% b) 20 to 30%
c) 30 to 40% d) 65 to 70%
Ans: d

CHOOSE THE CORRECT PAIRS:
1. Volatile oil Source
a) Turpentine oil i) Cymbopogon citratus
 b) Lemon grass oil ii) Santalum album
 c) Sandal wood oil iii) Artemisia pallens
 d) Davana oil iv) Punus species
 Ans: a) iv b) i c) ii. d) iii
2. Turpentine class Number of isoprene units
 a) Sesquiterpine i) Two
 b) Monoterpene ii) Four
 c) Diterpene iii) Three
 d) Triterpene iv) Six
 Ans: a) iii b) i. c) ii d) iv
3. Drug Source
 a) Cardamom i) Coriandrum sativum
 b) Caraway ii) Carum carvi
 c) Coriander iii) Anethum graveolens
 d) Dill iv) Elettaria cardamomum
 Ans: a) iv b) ii c) i. d) iii
4. Source Family
 a) Anethum graveolens i) Rutanceae
 b) Citrus limonis ii) Umbelliferae
 c) Nutmeg iii) Lauraceae
 d) Cassia cinnamon iv) Myristicaceae
 Ans: a) ii b) i. c) iv d) iii
5. Drug Volatile oil not less than
 a) Coriander i) 2.0%
 b) Ajowan ii) 2.5%
 c) Dill iii) 1.4%
 d) Fennel iv) 0.3%
 Ans: a) iv b) i. c) ii d) iii
6. Adulterants for clove Characteristics
 a) Mother clove i) Expanded flowers of clove trees.
 b) Blown cloves ii) Contain only 5% of oil.
 c) Clove stalks iii) Oil is removed from clove.
 d) Exhausted clove iv) Dark brown, ovate and ripened
      Fruits of clove
 Ans: a) iv b) i. c) ii d) iii



















TANNINS
Select the correct answer out of given choices: 
Goldbeater skin test is used for identification of: 
a) Alkaloids b) Glycosides
c) Tannins c) Resins
Ans: c
Tannins show some chemical reaction except: 
solution of tannins precipitate gelatin.
Tannins are precipitated by salt of copper, tin and lead.
They show colour reaction with iron.
They react with potassium mercuric iodide.
Ans: d
Condensed tannins are called as: 
a) Hydrolysable tannins b) Non hydrolysable
c) Pseudotannins d) Prototannins
Ans: b
Tannic acid is under the class of: 
a) Condensed tannins b) Pseudotannins
c) Hydrolysable tannins d) Condensed and pseudotannins
Ans: c
Biological source of Arjuna
a) Terminalia arjuna b) Terminalia chebula
c) Terminalia tomenstosa d) Terminalia belerica
Ans: a
Tannic acid is antidote in poisoning: 
a) Iodine b) Cyanide
c) Alkaloid d) Arsenic
Ans: c
When pterocarpus is treated with potassium hydroxide, it gives
a) Violet b) Green
c) Red d) Black
Ans : a
Gambir flurescin test is used for drug: 
a) Arjuna b) Ashoka
c) Pale catechu d) Black catechu
Ans: c

Black catechu contains about percentage of acacatechin: 
a) One percentage b) Three percent
c) Seven percent d) Ten percent
Ans: d
CHOOSE THE CORRECT PAIRS:
Drug Application
a) Pale catechu i) Hypoglycemic
b) Pterocarpus ii) Diuretics
c) Amla iii) Cardiotinics
d) Arjuna iv) Diarrhoa
Ans: a) iv b) i. c) ii d) iii

CARBOHYDRATES

1. Composition of Molisch reagent is 

 a) Alpha napthol + sulphuric acid

 b) Beta napthol + sulphuric acid

 c) Naphthylamine + sulphuric acid

 d) Phenol + sulphuric acid

 Ans : a

2. Chemical test used for identification of carbohydrates: 

a) Ninhydrin b) Molisch

c) Borntrager d) Baljet

Ans: b

3. Important chemical constituent of Algin is: 

 a) Tragacanthin b) Bassorin

 c) Alginic acid d) Alginic ester

 Ans: c

4. Important chemical constituent honey is: 

 a) Glucose b) Fructose

 c) Maltose d) Invert sugar

 Ans: d

5. Pectin is used in the pharmaceutical industries as: 

 a) Adsorbent b) Demulcent 

 c) Emulsifying agent d) Suspending agent 

 Ans: a

6. Liquid glucose is obtained by: 

 a) Partial hydrolysis of glucose

 b) Partial hydrolysis of starch

 c) Complete hydrolysis of starch

 d) Complete hydrolysis of glucose

 Ana: b

7. The biological source for Indian gum is: 

 a) Cyamopsis tetragonoglobules b) Astragalus gamifer

 c) Acacia Arabica d) Acacia Senegal  

 Ans : c

8. When Indian gum is treated with ruthenium red it shows: 

 a) Pink colour b) Red colour

 c) Blue d) No colour change

 Ans: d

When Indian gum is treated with hydrogen peroxide and benzidine in alcohol; is shows blue colour due to:

a) Hydrolyase enzyme b) Oxidase enzyme

c) Reductase enzyme d) Invertase enzyme

Ans: b

The mostly used adulterant for Indian gum is: 

Acacia Senegal gum

Gum from Astragalus gummifer

Gum ghatti from anogeissus latifolia

Guar gum

Ans: c

Synonym for Guar gum: 

a) Jaguar gum b) Acacia

c) Gum acacia d) Gum Arabica

Ans: a

When guar gum is treated with about 2% solution of lead acetate; it shows: 

a) Pink colour b) Blue colour

c) Yellow colour d) No colour change

Ans: d

Artificial invert sugar is an adulterant for honey and it is detected by the test: 

a) Tollens b) Ninhydrine

c) Baljet test d) Fiehes test

And: d

The water soluble portion of tragacanth is known as: 

a) Tragacanthin b) Bassorin

c) Galctouronic acid d) D-galctopyranose

Ans: a

Pectin is used in the treatment of: 

a) Ulcer b) Hypertension

c) Angina d) Diarrhoea

Ans: d

Biological source for Isapgol:

a) Plantago ovata b) Aegle marmelos

c) Giladinium amansii d) Condrus cripsus

Ans: a

Which test is used for the purity of Isapgol?

a) Barfoed test b) Millons test

c) Molisch test d) Swelling factor

Ans: d

When Isapgol is treated with rhuthenium red, it shows colour: 

a) Blue b) Yellow

c) Pink c) Green

Ans: c

Isapgol seeds are adulterated with: 

a) Plantago purshii b) Plantago lanciolata 

c) Plantago aristala d) Plantago pysllium

Ans: b

Ager is used as: 

a) Binder b) Disintigrant

c) Emulsifying agent d) Preservative

Ans: c

Amylum is the synonym for: 

a) Tragacanth b) Starch

c) Inulin d) Locust bean

Ans: b

Rice starch is of size:

a) 2-12 micron b) 14-17 micron

c) 17-20 micron d) 20-25 micron

Ans: a

Wheat starch is of size: 

a) 0.1 to 1 micron b) 2 to 3 micron

c) 3 to 5 micron d) 5 to 50 micron

Ans: d

The size of potato starch varies from: 

a) 30 to 100 micron b) 100 to 130 micron

c) 130 to 10 micron d) 160 to 180 micron

Ans: a

Starch contains amylase and amylopectin in the proportion: 

a) 1:2 b) 1:1

c) 1:3 d) 2:1

Ans: a

The test, which is not used for identification of carbohydrates: 

a) Molisch test b) Osazone formation test

c) Ninhydrin test d) Resorcinol test

Ans: c

Keller kiliani test is used for identification of: 

a) Fructose b) Maltose 

c) Deoxy sugar d) Glucose

Ans: c

The synonym of Lactose is: 

a) Milk sugar b) Butter sugar

c) Crystalline sugar d) Pure sugar

Ans: a

CHOOSE THE CORRECT PAIRS:

Name Biological source

a) Carageennan i) Acacia Arabica

b) Acacia ii) Chondrus crispus

c) Agar iii) Gelidium amansii

d) Gum ghatti iv) Anogeissus latifolia

Ans: a) ii b) i. c) iii d) iv

Carbohydrates Biological source

a) Tragacanth i) Cyamopsis tetragonolobus

b) Guar gum ii) Astragulus gummifer

c) Psyllium iii) Plantago ovata

d) Isapgol iv) Plantago psyllium

Ans: a) ii b) i. c) iv d) iii

Name Biological source

a) Honey i) Oryza sativa

b) Starch ii) Citrus limonis

c) Pectin iii) Apis species

d) Gum karaya iv) Sterculia urens

Ans: a) iii b) i. c) ii d) iv

Starch Size

a) Rice i) 2 to 110 um

b) Potato ii) 2 to 45 um

c) Wheat iii) 2 to 10 um

d) Maize iv) 10 to 30 um

Ans: a) iii b) i. c) ii d) iv

A Source

a) Wheat i) Zea mays

b) Maize ii) Oryza sativum

c) Rice iii) Triticum sativum

d) Potato iv) solanum tuberosum

Ans: a) iii b) i. c) ii d) iv