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Chemistry

Chemistry
Petroleum consists of a mixture of

Carbonates
Carbohydrates
Hydrocarbons
Carbides

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given belowList-I (Vitamin)List-II(Chemical compound)F.Vitamin A1.ThiaminG.Vitamin B12.RetinolH.Vitamin C3.Ascorbic acidJ.Vitamin E4.TocopherolCodes :FGHJA.4132B.2314C.4312D.2134

A
D
B
C

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Chemistry
Mark the compound which possess ionic, covalent and coordinate bonds.

SO2
NH4Cl
SO3
H2O

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Chemistry
The enzyme that converts glucose to ethyl alcohol is :

Invertase
Diastase
Maltase
Zymase

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Chemistry
Terylene is a condensation polymer of ethylene glycol and which acid?

Terephthalic acid
Salicylic acid
Benzoic Acid
Phthalic acid

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Chemistry
Which of the following is a metallic ore ?

Quartz
Galena
Feldspar
Mica

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