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Chemistry

Chemistry
The pH of human blood is between :

6.5-7
7.5-8
4.5-5
44052

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Chemistry
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

2J
4J
Infinity

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Chemistry
The metal that is used as a catalyst in the hydrogenation of oils is

Pt
Pb
Cu
Ni

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Chemistry
Nitrogen fixation is a process of

Assimilation of nitrate
Conversion of molecular nitrogen to ammonia
Utilisation of nitrogen gas
Conversion of organic nitrogen to proteins

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Chemistry
Electric fuse is an alloy of

Zinc and lead
Carbon and tin
Copper and iron
Tin and lead

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234

C
B
A
D

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