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Chemistry

Chemistry
The number of electrons presents in H+ is

two
one
three
zero

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Chemistry
Vulcanized rubber contains sulphur

3-5%
7-9%
10-15%
0.02

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Chemistry
Galvanization of iron is carried out using

Chromium
Copper
Zinc
Tin

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Chemistry
The items amenable to detection by soft x-rays are

contrabands
genuine coins from counterfeit coins
narcotics
lead in bullets

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Chemistry
Which of the following is the petroleum wax ?

Bees wax
Jojoba wax
Carnauba wax
Paraffin wax

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Chemistry
Which among the following is found in chlorophyll ?

Ca2+
Fe2+
A l3+
Mg2+

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MORE MCQ ON Chemistry

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