Question # 1

When ethyl alcohol is heated, with NH3 in presence of ThO2 then

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O-H bond is broken

C-O bond is broken

Ethene is formed

Ethane is formed

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

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

What are the number of the electrons in valence shell of P in PCl3

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4

6

8

10

Which one of the following substances have garlic odour and a colourless gas.

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CH3OH

HCOOH

CH2=CH2

HC= CH

Starch is

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Monosaccharide

Disaccharide

Polysaccharide

Oligosaccharide

Out of all the elements of Group V-A the highest ionization energy is possessed by

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N

P

Sb

Bi

Which halogen will react spontaneously with Au to produce Au3+

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Br2

F2

I2

Cl2

The total number of translation elements is

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10

14

40

65

Which one the following a dihydric alcohol

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Ethanol

Cyclo hexanol

Glycerol

Glycol

Aluminum oxide is

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acidic oxide

basic oxide

amphoteric oxide

none of these

Acetaldehyde undergoes, aldol condensation in the presence of.

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dil HNO3

DIL NaOH

dil HCl

Conc. H2SO4

Group VI-B of transition elements contains

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Zn, Cd, Hg

Fe, Ru, Os

Cr, Mo, W

Mn, Te, Re

Ethanol reacts with Na metal to form sodium ethoxide. What product will be formed when C2H5ONa reacts with methyl bromide.

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C2H5OC2H5

C2H5OCH3

CH3COC2H5

C2H5Br and NaBr

Which one is neutral amino acid

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Lysine

Histidine

Glutamic acid

Valine

Variable valency is generally exhibited by

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Transition elements

Alkali metals

s-block elements

Gaseous elements

Glycoside linkage is present in

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Proteins

Nylon -6,6

Starch

DNA

------------------- is not a nucleophile

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H₂O

NO₃

BF₃

NH₃

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