Forwarded from Himanshi Singh lets learn
↘Living cells were discovered by
Anonymous Quiz
40%
(a) Robert Hooke
8%
(b) Purkinje
42%
(c) Leeuwenhoek
9%
(d) Robert Brown
Forwarded from Himanshi Singh lets learn
↗The activity of an enzyme becomes ineffective
Anonymous Quiz
25%
(a) at low temperature
24%
(b) at atmospheric pressure
41%
(c) at high temperature
9%
(d) in aqueous medium
Forwarded from Himanshi Singh lets learn
☑Volume of one mole of any gas at NTP is
Anonymous Quiz
12%
(a) 11.2 litre
68%
(b) 22.4 litre
14%
(c) 10.2 litre
6%
d) 22.8 litre
Forwarded from Himanshi Singh lets learn
🔻Which of the following will not form a colloidal system?
Anonymous Quiz
14%
(a) Solid-gas
23%
(b) Liquid-gas
55%
(c) Gas-gas
8%
d) Gas-liquid
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↘Which of the following types of metals make the most efficient catalyst?
Anonymous Quiz
18%
(a) Alkali metals
46%
(b) Transition metals
24%
c) Inner transition metals
12%
(d) Alkaline earth metals
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↘Tyndall effect confirms the
Anonymous Quiz
10%
(a) gravity effect on the sol. particles
58%
(b) light scattering by the sol. particles
20%
c) heterogeneous nature of sols.
12%
d) Brownian motion of the sol. particles
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⤴Shape selective catalysis is a reaction catalysed by
Anonymous Quiz
32%
(a) zeolite
31%
b) enzymes
19%
(c) platinum
18%
(d) Ziegler-Natta catalyst
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🔹Fe3O4 (magnetite) is an example of
Anonymous Quiz
18%
(a) normal spinel structure
39%
(b) inverse spinel structure
28%
c) fluoride structure
15%
d) anti fluorite structure
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↘Catenation property is maximum in
Anonymous Quiz
18%
(a) phosphorus
25%
(b) sulphur
54%
(c) carbon
3%
(d) No one
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❇Element found from sea water is
Anonymous Quiz
12%
(a) magnesium
38%
(b) Sodium
47%
(c) Iodine
3%
d) None of these
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↘Which one of the following does not form hydrogen bonding?
Anonymous Quiz
32%
A. HCl
18%
B. H2O
28%
C. HF
22%
D. No one
Forwarded from Himanshi Singh lets learn
↘Identify a member of porifera
Anonymous Quiz
58%
a) Spongilla
18%
(b) Euglena
13%
c) Penicillium
10%
(d) Hydra
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↘5-Kingdom classification has given by
Anonymous Quiz
8%
(a) Morgan
79%
(b) R. Whittaker
11%
(c) Linnaeus
2%
(d) Haeckel
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↗Which one of the following is the strongest lewis acid?
Anonymous Quiz
45%
(a) BF3
31%
(b) BCl3
12%
(c) BBr3
12%
(d) Bl3
Forwarded from Himanshi Singh lets learn
Forwarded from Himanshi Singh lets learn
Forwarded from Himanshi Singh lets learn
❇Which of the following is the strongest oxidising agent?
Anonymous Quiz
43%
(a) F2
32%
(b) Cl2
16%
(c) l2
9%
(d) Br2
Forwarded from Himanshi Singh lets learn
↘Modern periodic table is given by
Anonymous Quiz
12%
(a) Debonair
51%
(b) Mendeleef
27%
(c) Mendel
11%
(d) No one
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🔺The structure of white phosphorus is
Anonymous Quiz
24%
(a) square-planar
28%
(b) pyramidal
38%
(c) tetrahedral
10%
d) trigonal planar
Forwarded from Himanshi Singh lets learn
🔻A galvanometer acting as a volt meter will have with its coil.
Anonymous Quiz
30%
(a) a high resistance in parallel
43%
(b) a high resistance in series
20%
(c) a low resistance in parallel
6%
(d) a low resistance in series
Forwarded from Himanshi Singh lets learn
⏭Ohm’s law is valid when the temperature of conductor is :
Anonymous Quiz
16%
(a) very low
27%
(b) very high
12%
c) varying
44%
(d) constant