Chemical properties of substances & their uses
Q1. Salt that is connected with Mahatama Gandhi Dandi March ?
Ans Common Salt ( NaCl) or Rock Salt Or Sodium chloride
Q2. Salts are formed by reaction of acid & base , the reaction is called :-
Ans Neutralisation reaction
Q3. The pH of Salt of Strong Acid & Strong bas is
Ans 7 ( Neutral)
Q4. The pH of Salt of Strong Acid & Weak base is
Ans Less than 7 ( Acidic salt)
Q5. The pH of salt of strong base & weak acid is
Ans Greater than 7 ( basic salt)
Q6. sodium hydroxide (NaOH) is also called as
Ans Caustic Soda
Q7. Aqueous solution of NaCl is called as
Ans Brine
Q8. Chlor-alkali process is used for preparation of
Ans NaOH ( along with side product chlorine & Hydrogen )
Q9 Chemical used for de-greasing metals , soaps & detergents , paper making , artificial fibres is
Ans NaOH
Q10. Chemical used in fuels, margarine, hydrogenation , ammonia formation is
Ans Hydrogen
Q11. Chemical substance used in water treatment, PVC, CFC's, pesticides , disinfectant , swimming pools is '
Ans Chlorine
Q12. In chlor-alkali process Hydrogen is liberated at
Ans cathode
Q13. In Chlor -alkali process Chlorine is liberated at
Ans Anode
Q14. Bleaching powder ( calcium Oxychloride ) is chemically
Ans CaOCl2
Q15. slaked lime is
Ans Calcium Hydroxide = Ca(OH)2
Q16. Baking soda or Sodium bicarbonate or sodium hydrogen carbonate is
Ans NaHCO3
Q17. .....is used in making crispy pakoras
Ans baking soda
Q18. .....reacts with acids to liberate CO2 & Causes bread or cake to rise making them puffy Or spongy & soft
Ans baking Soda
Q19. Antacids are
Ans Mild or weak base that neutralise Gastric acid
Q20. baking soda acts as
Ans Antacid
Q21. The number of molecules of water of crystallisation in washing soda
Ans 10 ( Na2Co3 . 10 H2O )
Q22. washing Soda is also called
Ans :- sodium carbonate
Q23. Washing soda is ----salt
Ans Basic salt
Q24........is used in removing permanent hardness of water, Cleansing agent , soap & paper industries, borax formation -
Ans :- Sodium carbonate
Q25. What is P.O.P ;-
Ans Plaster of Paris
Q26. what is chemical name of P.O.P
Ans calcium sulphate hemi-hydrate ( CaSO24. 1/2 H2O )
Q27. What is chemical formula of Gypsum
Ans CaSO4. 2H2O
Q28. When Gypsum is heated at 400K , it form
Ans CaSO4 ( dead burnt Plaster )
Q29 When gypsum is heated at 373K , it forms
Ans P.O.P
Q30. .....changes the chemical composition of substance
Ans Chemical reaction or chemical change
Q31. Souring of milk is
Ans Chemical change
Q32. Burning of wood is '
Ans Chemical change
Q33. Stretching of springs is
Ans Physical change
Q34. melting of Wax is
Ans Physical change
Q35. melting of ice is '
Ans physical change
Q36. A solution reacts with crushed egg-shells to give a gas that turns lime-water milky . The solution contains
Ans HCl ( Hydrochloric acid )
37. A solution turns red litmus blue , its pH is likely to be
Ans > 7 ( basic )
Q38. Chemical or medicine used for treating indigestion
Ans Antacid
Q39. Ant sting & Nettle sting consists of
Ans Methanoic acid ( formic acid = HCOOH)
Q40. Milk of Magnesia , acts as antacid is
Ans Mg(OH)2 - Magnesium Hydroxide
Chemistry in Everyday life
1. The use of
chemicals for the treatment of diseases is called
a) Chemotherapy b) radiotherapy
c) Physiotherapy d) Isothermtherapy
2. Aspirin is a/an
a) Antiseptic
b) Antipyretic
c) Analgesic
d) Both - b & c
3). 2-Acetoxybenzoic
acid is called:-
a) Antiseptic b)
Aspirin c) Antibiotic d)None
4. Which of the
following is used for inducing sleep?
a) Paracetamol b) Bithional
c) Chloroquine d) Barbituric acid derivative
5. Which of the
following is hypnotic ?
a) Acetaldehyde b) Metaldehyde
c) Paraldehyde d) NOTA
6. Arsenic drugs
are mainly used in the treatment of
a) Jaundice b)
typhoid c) Syphillis d) cholera
7. Amoxicillin is
semi-synthetic modification of
a) penicillin b) streptomycin
c)
tetracycline d)None
8. Commonly dettol
is an antiseptic & is a mixture of
a) Cresol + Phenol
b) Chloroxylenol+terpeneol
c) phenol+terpeneol
d) NOTA
9. which of the
following is employed as a tranquilizer?
a) naproxen
b) tetracycline
c)Equanil
d) Mifepristone
10. Which of the
following is not antihistamine
a) Benadryl b)
Avil c) cetirizine d) rantidine
11.A broad spectrum
antibiotic
a)PCM
b) penicillin
c) Aspirin d) chloramphenicol
12. Matched ( Already )
|
List 1
|
List 2
|
|
A. iodoform
|
I.Antiseptic
|
|
B. Iodex(methylsalicylate)
|
ii. Pain balm
|
|
C. Diethyl ether
|
iii.Anesthetic
|
|
D. BHC
|
iv. Insecticide
|
13. which of the
following is bacteriostatic & broad spectrum antibiotic
a) Chloramphenicol
b) Penicillin
c) Ofloxacin d) aminoglycosides
14. In India, penicillin is manufactured at
Hindustan Antibiotics in---- & is private sector industry
a) Pimpri b)
Nashik c) Solapur d) udgir
15. Paul Ehrlich
(German bacteriologist) synthesized medicine-Arsphenamine(Salvarsan) is
containing ‘As’ metal used as
a) Antibiotic
b) Analgesic
c)
Antipyretic d) None
16. Which of the
following form the base of talcum powder?
a) Magnesium hydrosilicate b) Zinc stearate
c) sodium aluminium silicate d) chalk
17. The common
vehicle used in perfumes is
a) EtOH-H2O mixture b) Phenol+H2O mixture
c) Phenol-EtoH-H2O mix. d) Phenol+ H2O mix.
18. Phenol is used
as
A) Antiseptic b) Disinfectant c) Both a&b d) None
19. NAD’s include
:-
a) Antimicrobials
b) tranquilizers
c) Analgesics
d) Both b & c.
20 . Vitamin-E is chemically called
A) Tocopherol B) Retinol
C) Riboflavin D) Niacin
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