Question # 1

The difference of actual and theoretical heat of hydrogenation of compound is called.

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Lattice energy

Resonance energy

Ionization energy

Enthalpy of formation

Systematic name of phthalic acid is

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Benzenedicarboxylic acid

Benzene doioc acid

1,2 benzenedicarboxylic acid

o, carboxylic benzoic acid

Number of peptide bonds in tripeptide is

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1

2

3

4

Which is the second most abundant element in the universe

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H

He

CO

C

The general representation for Grignard reagent is.

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RMgX

ReMgX

RXMg

RMgX2

Group VI B of transition elements contains.

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Zn, Cd, Hg

Fe, Ru,Os

Cr, Mo, W

Mn, Te, Re

Which one of the followings is not observed in the combustion of pure methane in a plentiful supply of air

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Water in produced

CO2 is produced

The flame is smoky

Energy is released

The nitrogen present to some fertilizers helps plants to

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Fight against diseases

Produce fat

Undergo photosynthesis

Produce protein

Which one is symmetrical ketone

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Acetone

Methyl ethyl ketone

Methyl n propyl ketone

2- pentonone

Which form interstitial compounds.

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Fe

Ni

CO

All of those

Silver mirror test is given by

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Ethers

Ketones

Acids

Aldehydes

Which one is an incomplete period

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4th

5th

6th

7th

Which raw material is used for preparation of bleaching powder.

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Cl2 and H2O

Cl2 and Lime

Cl2 and HOCl

HCl and Lime

Prilling is a process in which

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Concentration of urea is increased

Water is removed from urea

Molten urea is converted to solid drop

Some other ingredients are added to urea

An atom or group of atoms, which confers characteristic properties to organic compounds, are called.

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Isomerism

Metamerism

Ligands

Functional groups

Grignard's reagent is reactive due to

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the presence of halogen atom

the presence of Mg atom

the polarity of C-Mg bond

none of the above

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

Which of the following species is ortho and para director.

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CHO

SO3H

NO2

Cl

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