Give the ratio in which hydrogen and oxygen are present in water by volum99
Anonymous Quiz
33%
1:2
49%
2:1
11%
3:5
6%
3:9
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Precipitation reactions produce insoluble …………. .
Anonymous Quiz
63%
Salt
19%
Sugar
13%
Sand
6%
None
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Reactions in which energy is given out are known as …………. .
Anonymous Quiz
73%
Exothermic
19%
Endothermic
6%
Displacement
3%
None
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………. is the process in which metals are eaten up gradually by the action of air,
Anonymous Quiz
45%
Oxidiation
12%
Reduction
38%
Coroosion
5%
Rancidity
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Test series k saath aisa chapter wise assignment hai including the important questions
👍14
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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