Question # 1

Alcohol obtained by fermentation is only upto

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10%

12%

20%

95%

An aldehyde compound can be reduced to alkane by

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Wurtz reaction

Grignard reaction

Wolf Kishner reaction

Kolbe's reaction

The temperature in the incineration of industrial and hazardous waste process has a range.

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900 to 1000 ^oC

250 to 500^oC

950 to 1300^oC

500 to 900^oC

Most likely product formed when formic acid is dehydrated in the presence of conc. H2SO4 is.

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CO2 and H2O

CO, CO2 and H2O

CO2 and H2

CO and H2O

The reactivity order of alkyl halides for a particular alkyl group is.

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Fluoride > Chloride > Bromide > Iodide

Chloride > Bromide >Chloride > Fluoride

Iodide > Bromide > Chloride > Fluoride

Bromide > Iodide > Chloride > Fluoride

P2O5 is usually used as

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Drying agent only

Reducing agent

Both drying and reducing agent

Both drying agent and oxidizing agent.

During pulp making, the pH of digester is maintained at.

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1-2

3-5

6-8

7-9

Which class of elements shows law value of first ionization potential.

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Alkali metals

Alkaline earth metals

Halogens

Noble gases

Water is disinfected by a substance to avoid toxification

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KMnO₄

Alums

O₃

Cl₂

Which are correct oxidation states for lead

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+1, +2

+3 , +5

+2 ,+4

+4 only

Which one of the following is not use of acetic acid.

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Coagulant for rubber latex

Local irritant

Formation of rayon and silk

Formation of alcohol

Which one is used as debydrating agent for alcohol.

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H2SO4

Al2O3

H3PO4

All of these

Which property of triglycerides is used to determine its molecular mass.

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acid number

Saponification number

Iodine number

gold number

d -block elements which show anomalous configuration in first series are

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Cr and Ni

Cr and Cu

Cu and CO

Fe and Ni

Which is not a calcarious material.

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Lime

Clay

Marble

Marine shell

Phenol is also known as

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Citric acid

Carbonic acid

Carbolic acid

Maleic acid

The macro nutrients are required in ranging from

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5 kg to 200 kg

5 kg to 200 g

6g to 200 g

1 kg to 100 kg

-------------------- is Alcohol in the following

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CH₃.CH₂.OH

CH₃.O.CH₃

CH₃COOH

CH₃.CH₂.SH

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