CBSE Questions for Class 12 Engineering Chemistry Chemistry In Everyday Life Quiz 10 - MCQExams.com

Tincture of iodine is - 
  • aqueous solution of $${ I }_{ 2 }$$.
  • solution of $${ I }_{ 2 }$$ in aqueous KI.
  • alcoholic solution of $${ I }_{ 2 }$$.
  • aqueous solution of $$KI$$.
The main function of an antacid is?
  • to neutralise body acid
  • to neutralise body base
  • both $$a$$ and $$b$$
  • $$None\ of\ these$$
A compound used as pistachio flavour in ice cream is _____
  • vanillin.
  • acetophenone.
  • muscone.
  • butyraldehyde.
Which of the following statement is wrong about Abscisic acid :
  • It helps in general plant metabolism
  • It is antagonistic to $$GA_3$$
  • It helps in seed maturation & dormancy
  • Morphogenesis
Water in oil(w/o), what is added as emulsifying agent.
  • Soap
  • Heavy metal
  • Gold
  • None
Which is incorrect
  • Novestrol - Antifertility
  • Serotonine - Tranquilizer
  • zentac - antacid
  • none of these
Full form of GFC is?
  • Grazing food chain
  • Grazing fish chain
  • Gross food chain
  • Green forest conservation
Refrigeration helps in food preservation by
  • Killing the germs
  • Reducing the rate of biochemical reactions
  • Destroying enzyme action
  • Sealing the food with a layer of ice
Barbiturates are potent:
  • Hypnotics
  • Antimicrobials
  • Antacids
  • Antiseptics
  • Antiallergics
Assertion : Cimetidine is an antacid.
Reason : Antacid increases secretion of HCI from gastric cells.
  • If both assertion and reason are true and reason is the correct explanation of assertion.
  • If both assertion and reason are true but reason is not the correct explanation of assertion.
  • If assertion is true but reason is false.
  • If both assertion and reason are false.
Match List-I with List-II and select the correct answer using the codes given.
List-I (Compound)List-II (Use)
A. Cellulose nitrate$$1$$. Soft soap
B. Potassium sulphate$$2$$. Gun powder
C. Potassium salt of fatty acids$$3$$. Fertilizer
D. Calcium oxide$$4$$. Glass
  • A-$$2$$, B-$$3$$, C-$$1$$, D-$$4$$
  • A-$$3$$, B-$$2$$, C-$$1$$, D-$$4$$
  • A-$$4$$, B-$$1$$, C-$$2$$, D-$$3$$
  • A-$$3$$, B-$$1$$, C-$$2$$, D-$$4$$
Dettol consist of:
  • xylenol + terpeneol
  • chloroxylenol + terpineol
  • cresol + ethanol
  • none of the above
Which element has an oxide that is used as a food preservative?
  • Helium
  • Hydrogen
  • Iron
  • Sulfur
Soft soap are
  • Sodium salt
  • Calcium salt
  • magnesium salt
  • potassium salt
Assertion: In O/W emulsion, soap is mixed.
Reason: Soap reduces surface tension.
  • If both assertion and reason are true and reason is the correct explanation of assertion.
  • If both assertion and reason are true but reason is not the correct explanation of assertion.
  • If assertion is true but reason is false.
  • If both assertion and reason are false.
Amoxicillin is semi-synthetic modification of:
  • penicillin
  • streptomycin
  • tetracycline
  • chloramphenicol
Which of the following chemicals is used as pain killer?
  • Phenyl acetate
  • Methyl acetate
  • Acetyl salicylic acid
  • Salicylic acid
State whether the following statement is true or false :
A soap contains only hydrophilic part while a detergent consist only hydrophobic part in the molecule.
  • True
  • False
Soap are the salts of higher fatty acids.
  • True
  • False
Soaps are sodium or potassium salts of carboxylic acids.
  • True
  • False
Detergent can be used even in hard water.
  • True
  • False
State, whether the following statements are true or false.

Chemotherapy means the use of chemicals to destroy infectious microorganisms without causing any injury to host.
  • True
  • False
The drug which is effective in curing malaria is:
  • quinine
  • aspirin
  • salol
  • analgin
Chloroquine is:
  • an analgesic
  • an antibiotic
  • an antimalarial
  • an antipyretic
State, whether the following statements are True or False.
Paracetamol is an antipyretic drug.
  • True
  • False
State, whether the following statements are True or False.
Tranquillizers affect the central nervous system and induce sleep.
  • True
  • False
Hydrazine as a drug is used in the treatment of:
  • malaria
  • typhoid
  • cholera
  • tuberculosis
State, whether the following statements are True or False.
Phenyl butazone is considered as a safe drug.
  • True
  • False
State, whether the following statements are True or False.
Sulphapyridine is used to cure pneumonia.
  • True
  • False
Sulpha drugs are used for
  • removing bacteria
  • precipitating bacteria
  • stopping the growth of bacteria
  • decreasing the size of bacteria
Cetyl trimethyl ammonium bromide is a popular
  • non-ionic detergent
  • anionic detergent
  • cationic detergent
  • sweetener
  • antioxidant
Which of the following may be used as a food preservative?
  • Benzene
  • Sodium benzoate
  • Toluene
  • Sodium meta-aluminate
Which of these is a hypnotic?
  • Metaldehyde
  • Acetaldehyde
  • Paraldehyde
  • None of these
In making of lemon pickle,
  • chillies are used to kill all germs and bacteria
  • lemon oil acts as preservative
  • salt plays the same role as sugar in jam
  • citric acid acts as preservative
Paracetamol is an:
  • antibiotic
  • antipyretic
  • antimalarial
  • analgesic
Which one  of the following is  a food preservation ?
  • Sodium acetate
  • Sodium propionate
  • Sodium benzoate
  • Sodium oxalate
Sodium lauryl sulphate is
  • Cationic sol
  • Anionic sol
  • Neutral sol
  • None of these
Which of the following is not true of a detergent molecule?
  • It has a non- polar organic part and a polar group
  • It is not easily biodegraded
  • It is a sodium salt of fatty acid
  • It is a surface active agent
A detergent is a 
  • Cleaning agent
  • Drug
  • Catalyst
  • Vitamin
Which one of the following is found in Lemon?
  • Citric acid
  • $$KCl$$
  • $$Na_2SO_3$$
  • Sodium metabisulphite
Vinegar obtained from sugarcane has
  • $$CH_3COOH$$
  • $$HCOOH$$
  • $$C_6H_5COOH$$
  • $$CH_3CH_2COOH$$
Milk can be preserved by adding a few drops of
  • Formic acid solution
  • Formaldehyde solution
  • Acetic acid solution
  • Acetaldehyde solution
The ultimate product of oxidation of most of hydrogen and carbon in foodstuffs are
  • $$H_2O$$ alone
  • $$CO_2$$ alone
  • $$H_2O$$ and $$CO_2$$
  • None of these
To prevent rancidification of food material, which of the following is added
  • Reducing agent
  • Anti-oxidant
  • Oxidising agent
  • None of these
A medicine which promotes the secretion of urine is called
  • Uretic
  • Monouretic
  • Diuretic
  • Triuretic
Which of the following is not an antipyretic
  • Aspirin
  • Paracetamol
  • Barbituric acid
  • Phenacetin
The drug used as an antidepressant is
  • Luminol
  • Tofranil
  • Mescaline
  • Sulphadiazine
Streptomycin is effective in the treatment of
  • Tuberculosis
  • Malaria
  • Typhoid
  • Cholera
The substances which effect the central nervous system and induce sleep are called
  • Tranquillizers
  • Antipyretics
  • Analgesics
  • None of these
Chloroamine - T is a
  • Disinfectant
  • Antiseptic
  • Analgesic
  • Antipyretic
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