DRONA COACHING CENTRE NARNAUL
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🔽Formula of copper pyrite is
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15%
a)Cu2S
26%
(b) CuFeS
46%
(c) CuFeS2
13%
(d) Cu2Fe2S2
Common impurities present in bauxite are
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18%
(a) CuO
30%
(b) ZnO
19%
(c) CaO
34%
(d) SiO2
💥In blast furnace iron oxide is reduced by
Anonymous Quiz
16%
(a) silica
52%
(b) carbon monoxide
18%
(c) carbon
14%
(d) lime stone
🔻Which of the following oxides cannot be reduced by hydrogen?
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17%
(a) Ferric oxide
39%
(b) Aluminium oxide
21%
c) Zinc oxide
23%
(d) Cupric oxide
Radio waves from an antenna travel with the velocity of:
Anonymous Quiz
30%
a) light
26%
(b) sound
35%
c) ultrasonics
9%
(d) supersonics
Water gas is mixture of hydrogen H2 and
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40%
(a) CO
47%
(b) CO2
7%
(c) Cl2
5%
(d) SO2
Hydrogen is a good __________ agent.
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36%
(a) Oxidizing
53%
b) Reducing
9%
(c) Acidic
3%
(d) Basic
Q1:-The vascular tissue of blood is made up of
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14%
(a) RBC
17%
(b) plasma
10%
(c) platelets
60%
(d) all of the above
Q2:-Which one of the following is a scent gland of mammals?
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33%
(a) Bartholin
23%
(b) Anal
27%
(c) Prostate
17%
(d) Adrenal
Q3:-Protein not found in the connective tissues is
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22%
(a) actin
38%
b) ossein
30%
(c) collagen
10%
(d) elastin
Q5:-🔽Which of the following is absent in female frog?
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10%
(a) Webbed feet
38%
(b) Copulatory pads
19%
c) Tympanum
32%
(d) All are present
Q7:-🆕Spot the salivary gland in the following :
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58%
(a) sublingual
22%
(b) adrenal
13%
(c) Brunners
8%
(d) lacrimal
Q9:-🔰Osteoblasts are found in
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11%
(a) blood
19%
(b) muscle
56%
(c) bone
14%
(d) catrilage
Q2:-Alpha particle emitted from a radioactive material are:
Anonymous Quiz
50%
(a) Helium nuclei
30%
(b) Hydrogen nuclei
14%
(c) Lithium nuclei
5%
(d) None of the above