Question # 1

Which one of the following elements has the largest second ionization energy.

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O

Na

F

Ne

Mark the incorrect statement

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Metallic character increase down the group

Metallic character increase from left to right along a period

Metallic character decrease from left to right along a period

Metallic character remains the same down the group

Alkyl halides are considered to be very reactive compounds towards nucleophile because

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They have an electrophilic carbon

They have an electrophilic carbon and a good leaving group

They have an electrophilic carbon and a bed leaving group

They have a nucleophilic carbon and a good leaving group

When CO2 is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is.

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Propane

Propanoic acid

Propanal

Propanol

Which one of the following is inorganic polymer

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Graphite

Rubber

DNA

Protein

Which one of the following is not a heterocyclic compound.

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Furan

Thiophene

Pyridine

Aniline

Lactose has same molecular formula as

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Glucose

Fructose

Ribose

Maltose

As you proceed across a period in the periodic table the first ionization energy

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Decrease

Increase

Remains constant

First increase up the middle of period and then decreases

Which one of the following has lowest first ionization energy.

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Li

Na

Rb

Cs

The presence of a double bond in a compound is the sign of

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Saturation

Un-saturation

Substitution

None of these

Ethanol can be converted into ethanoic acid by

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Hydrogenation

Hydration

Oxidation

Fermentation

The anhydride of HCIO4 is

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CIO3

CIO2

Cl2O5

Cl2O7

Which of the following acids possess oxidizing and reducing properties.

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HCl

HNO2

HNO3

H2SO4

S_N2 mechanism involves

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1st order kinetics

2nd order kinetics

3rd kinetics

zero order kinetics

The flavour of amylacetate is

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Orange

Apricot

Banana

Pineapple

Which compound is called a universal solvent.

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H2O

CH2OH

C2H5OH

CH5-O-CH3

Which gas has highest boiling points.

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He

Ne

Ar

Kr

Thickness of the atmosphere is

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100 km

500 km

1000 km

1500 km

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