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(1) Rusting of iron

there are 3 sources of resistance in a parallel circuit's. 2 of them are rated at 20 ohms, the other at 10 ohms. what is the circuit's total resistance?

2 Answers  

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how is electricity converted from the potential energy of water falling from dams?

3 Answers   HLL, KIH, Reliance,

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Cooking oil can be converted into vegetables ghee by the process of 1 Oxidation 2 Hydrogenation 3 Distillation 4 Crystallization

4 Answers   SSC, TAPL,

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Titanium is purified by 1 Zone refining 2 Electrolysis 3 Van Arkel method 4 Hydraulic washing

4 Answers  

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Water is neither acidic nor alkaline because 1 It cannot accept or donate protons 2 It boils at a high temperature 3 It can dissociate into equal number of hydrogen ions 4 It cannot donate or accept electrons

2 Answers   ACIO,

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Caustic soda is 1 NaC1 2 Na2CO3 3 NaOH 4 NaHCO3

4 Answers  

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The element required for solar energy conversion is 1 Germanium 2 Silicon 3 Uranium 4 None of these

2 Answers  

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What are the important factors of cosmic rays?

0 Answers  

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How does common salt help in separating soap from the solution after saponification ? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 By increasing density of soap

4 Answers  

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What is the Nutrition ?

1 Answers  

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What do you understand by nutritive constituents of food ?

3 Answers   ICICI, Yahoo,

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The ratio of pure gold in 18 carat gold is 1 60% 2 75% 3 80% 4 100%

3 Answers   DSSSB-Delhi Subordinate Service Selection Board,

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