Q1:-The increasing order of the atomic radii of elements Na, Rb, K, Mg is
Anonymous Quiz
23%
(a) Na < K < Mg < Rb
20%
(b) K < Na < Mg < Rb
31%
(c) Na < Mg < K < Rb
26%
(d) Mg < Na < K < Rb
❤16🔥10
Q2:-Which of the following sets does not belong to a group?
Anonymous Quiz
10%
(a) Li, Na, K
60%
(b) B, C, N
18%
(c) B, Al, Ga
12%
(d) O, S, Se
🔥14
Q3:-Arrange the following elements into the increasing order of their metallic character along a period.
Anonymous Quiz
12%
(a) S < Si < P < Al
50%
(b) S < P < Si < Al
28%
(c) Si < P < S < Al
10%
(d) Si < S < P < Al
🔥14❤3
Q4:-Which is not true about noble gases?
Anonymous Quiz
17%
(a) They are non-metallic in nature
22%
(b) They exist in atomic form
37%
(c) They are radioactive in nature
24%
(d) Xenon is the most reactive among these
🔥13
Q5:-Identify the group which is not a Döbereiner triad
Anonymous Quiz
16%
(a) Li, Na, K
24%
(b) Cl, Br, I
27%
(c) Ca, Sr, Ba
32%
(d) Be, Mg, Cr
❤24🔥13
Q1:-Enzymes increase the rate of reaction by
Anonymous Quiz
40%
(a) lowering activation energy
33%
(b) increasing activation energy
21%
(c) increasing temperature and pH
6%
(d) decreasing temperature and pH
🔥16❤3
Q2:-Lactose molecule is composed of
Anonymous Quiz
9%
(a) Fructose+Fructose
39%
(b) Glucose+Fructose
11%
(c) Glucose+Glucose
42%
(d) Glucose+Galactose.
🔥18
Q3:-Maximum amount of iron occures in
Anonymous Quiz
11%
(a) Proteins
23%
(b) Bone cells
18%
(c) Leucocytes
48%
(d) Erythrocytes.
🔥11❤9
Q4:-Which of the following is not a pyrimidine?
Anonymous Quiz
24%
(a) Uracil
20%
(b) Cytosine
43%
(c) Guanine
13%
(d) Thymine
🔥10❤6
Q5:-Length of one turn of the helix in a B-form DNA is approximately
Anonymous Quiz
37%
(a) 3.4 nm
41%
(b) 0.34 nm
17%
(c) Both
5%
(d) None of these
❤12🔥11
Q1:-Which one of the following is true for fungi?
Anonymous Quiz
14%
(a) They are phagotrophic
23%
(b) They lack a rigid cell wall
49%
(c) They are heterotrophs
15%
(d) They lack a nuclear membrane
❤13🔥12
Q2:-Which of the following shows coiled RNA strand and capsomeres?
Anonymous Quiz
6%
(a) Poliovirus
70%
(b) Tobacco mosaic virus
11%
(c) Measles virus
14%
(d) Retrovirus
🔥23❤9
Q3:-Which one of the following matches is correct?
Anonymous Quiz
31%
(a) Alternaria Sexual Deuteromycetes reproduction absent
28%
(b) Mucor Reproduction Ascomycetes by Conjugation
30%
(c) Agaricus Parasitic fungus Basidiomycetes
12%
(d) Phytophthora Aseptate Basidiomycetes mycelium
🔥26❤4
Q4:-One of the major components of the cell wall of most fungi is
Anonymous Quiz
63%
(a) Chitin
16%
(b) Peptidoglycan
15%
(c) Cellulose
5%
(d) Hemicellulose
🔥30❤4
Q5:-Which of the following statements is wrong for viroids?
Anonymous Quiz
22%
(a) They lack a protein coat
17%
(b) They are smaller than viruses
12%
(c) They cause infections
49%
(d) Their RNA is of high molecular weight
🔥46❤8
Q1:-The mixture which shows positive deviation from Raoult’s law is:
[NEET 2020]
[NEET 2020]
Anonymous Quiz
25%
(1) Benzene + Toluene
32%
(2) Acetone + Chloroform
24%
(3) Chloroethane + Bromoethane
18%
(4) Ethanol + Acetone
🔥18❤8
Q2:-The mixture that forms maximum boiling azeotrope is:
Anonymous Quiz
13%
a. Heptane+Octane
38%
b. Water+Nitric acid
33%
c. Ethanol +Water
16%
d. Acetone+Carbon disulfide
❤17🔥2
Q3:-Which of the following is dependent on temperature?
Anonymous Quiz
48%
(1) Molarity
28%
(2) Molality
16%
(3) Mole fraction
9%
(4) Weight percentage
❤10🔥5