The poorest conductor of heat among metals is
Anonymous Quiz
37%
Lead
32%
Mercury
20%
Calcium
11%
Sodium
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The electronic configuration of three elements X, Y and Z are as follows:
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,
Anonymous Quiz
28%
Xy
50%
Yz
14%
Y2z
8%
Xy^1
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Which of the following non-metal is lustrous?
Anonymous Quiz
25%
Sulphur
23%
Oxygen
16%
Nitrogen
36%
Iodine
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An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
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24%
Mg
56%
Na
12%
P
7%
Ca
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A non-metal which is a good conductor of electricity is β¦β¦β¦ .
Anonymous Quiz
17%
Diamond
67%
Graphite
12%
Carbon
5%
None
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π14
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A non-metal used to preserve food material is:
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22%
Carbon
14%
Sulphur
51%
Nitrogen
12%
Phosphorous
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Aqua regia is a freshly prepared mixture of concentrated HNO3 and concentrated HCl in the ratio of:
Anonymous Quiz
47%
1:3
33%
2:3
11%
3:3
8%
1:3
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In amoeba, food is digested in the:
Anonymous Quiz
41%
Food vacoule
40%
Mitochondria
15%
Lysosome
4%
Rna
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