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Chemistry

Chemistry
Which of the following is not present in German-silver?

Copper
Silver
Zinc
Nickel

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Chemistry
In a period from Li to F, ionisation potential

Remains same
Cannot be predicted
Decreases
Increases

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Chemistry
Cement is made hard with

Dehydration
Dissociation of water
Hydration and dissociation of water
Polymerisation

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Chemistry
Stainless steel is usually made by alloying the steel with

Copper and nickel
Manganese and copper
Copper and chromium
Chromium and nickel

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Chemistry
The acid present in red ants is

Formic acid
Butyric acid
Caproic acid
Acetic acid

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Chemistry
Galvanised iron is made by coating iron with

Nickel
Zinc
Sulphur
Chromium

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