Chemistry in action
Exam Duration: 45 Mins Total Questions : 15
Which one of the following is an example of triphenylmethane dye?
- (a)
alizarin
- (b)
malachite green
- (c)
orange I
- (d)
maritus yellow
Malachite green.
Which one of the following is an example of acid dye
- (a)
malachite green
- (b)
indigo dye
- (c)
orange I
- (d)
congored
orange I
Which one of the following is not a sythetic detergent?
- (a)
sodium lauryl sulphate
- (b)
sodium salt of lauryl alcohol
- (c)
ethoxylate
- (d)
sodium salt of stearic acid
Sodium salt of stearic acid is soap. All others are synthetic detergents.
Which one of the following fertilisers contains the maximum percentage of nitrogen?
- (a)
ammonium sulpate
- (b)
CAN
- (c)
NH4Cl
- (d)
Urea
Urea
The percentage of nitrogen in Urea is
- (a)
20.6
- (b)
20.5
- (c)
25
- (d)
46
46%
The formula of triple superphosphate is
- (a)
(NH4)2HPO4
- (b)
Ca(H2PO4)22CaSO42H2O
- (c)
5Ca(H2PO4)2F
- (d)
[Na(NH4)HPO44H2O
Ca(H2PO4)3
The percentage of P2O5 in triple superphosphate is
- (a)
53.6
- (b)
24.4
- (c)
65.0
- (d)
34.0
65%
Which one of the following is an analgesic?
- (a)
pencillin
- (b)
streptomycin
- (c)
asprin
- (d)
tetracycline
All are antibiotics except aspirin (acetylsalicylic acid).
BHC is a/an
- (a)
insecticide
- (b)
fertilizer
- (c)
synthetic polymer
- (d)
polyamide
BHC is an insecticide.
Which one of the following is not a pesticide?
- (a)
DDT
- (b)
BHC
- (c)
malathion
- (d)
serpasil
Serpasil is a tranquillizer and hypnotic; others are pesticide.
Which one of the following is not a food preservative?
- (a)
vanillin
- (b)
butylated hydroxy toluene
- (c)
benzoic acid
- (d)
sodium meta-bi-sulphate
II is used tor imparting vanilla flavour to icecreams; others are food preservatives.
Which one of the following is a vat dye?
- (a)
alizarin
- (b)
indigo
- (c)
phthalocyanin
- (d)
malachite green
The correct chemical name for analgesics drug aspirin is
- (a)
4-ethoxyacetanilde
- (b)
4-hydroxy acetanilide
- (c)
2-acetoxy benzoic acid
- (d)
none of these
(a) is the IUPAC name tor phenacetin
(b) is the IUPAC name for paracetamol.
Malathion is an example of
- (a)
insecticide
- (b)
fungicide
- (c)
rodenticide
- (d)
herbicide
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