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Chemistry

Chemistry
In a period from Li to F, ionisation potential

Remains same
Increases
Cannot be predicted
Decreases

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Chemistry
Which of the following is a metallic ore ?

Galena
Quartz
Mica
Feldspar

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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

C
B
D
A

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Chemistry
Which is a natural colloid ?

Cane-sugar
Urea
Blood
Sodium chloride

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Chemistry
The constituents of automobile exhaust that can cause cancer is/are :

Lead
Oxides of nitrogen
Polycyclic hydrocarbons
Carbon monoxide

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Chemistry
What is Zeolite?

Hydrated Calcium Sulphate
Hydrated Aluminosilicate
Dehydrated Calcium Sulphate
Dehydrated Aluminosilicate

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