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Chemistry

Chemistry
Which of the following is the petroleum wax ?

Bees wax
Carnauba wax
Paraffin wax
Jojoba wax

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Chemistry
Which among the following is used as a catalyst in the production of high octane fuels?

H2SO4
HCl
HNO3
HF

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Chemistry
The inexpensive and commonly used variety of glass is called soda glass.

was initially used for storing sodium carbonate
is made using soda lime
is made using soda(sodium carbonate)
was used initially for making bottles of soda(carbonated drink)

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Chemistry
Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water

Magnesium
Calcium
None of these
Manganese

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Chemistry
Atoms having the same number of protons but different number of neutrons are called :

Higgs-boson
Isotopes
Anions
Cations

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Chemistry
Which of the following in automobile exhaust can cause cancer?

Carbon monoxide
Polyclinic hydrocarbons
Lead
Oxides of nitrogen

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