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Percentage of carbon in steel ranges from –
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The anode of a dry cell is made up of -
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The working of a dry cell is based on -
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In organic compounds, nitrogen is estimates by -
Milk is a natural –
The function of skimming tank in sewage treatment is to remove –
Petroleum is a mixture of –
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Which one of the following is used in the preparation of antiseptic solution?
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Which one of the following noble gases is not found in the atmosphere?
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The acid used in lead storage cells is –
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