Question # 1

The conversion of an halide of an alkene is an example:

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addition reaction

substitution reaction

elimination reaction

oxidation reaction

Ethene is produced from ethyl chloride by reacting with alcoholic KOH. The process is called

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Hydrogenation

Dehydrogenation

Dehydrohalogenation

Oxidation

Which of the following alcohol cannot be produced by treatment of aldehydes or ketones with NaBH4

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I-propanol

2-Methyl-2-propanol

2-propanol

Ethanol

In which of these processes are small organic molecules changed into macromolecules?

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the fractional distillation of crude oil

the cracking of petroleum fractions

the hydrolysis of proteins

the polymerization

In an elimination reaction a more substituted alkene is formed due to the stability associated with

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Free radical

transition state

Activated complex

Carbocation

If the reaction "P+Q→R+S' is deseribed as being of zero order with respect to P, it means that

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P is catalyst in this reaction

P molecules do not possess sufficient energy to react

The concentration of P does not change during the reaction

The rate of reaction is independent of the concentration of P

Which Henderson equation is not correct?

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pH= pKa +log [ salt/acid]

pH = pKa - log [ salt/acid ]

pH= pKa - log[ acid/salt ]

Pka = pH - log [ salt/acid ]

Amount of ozone in atmosphere is expressed in units:

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Kilograms

cm

molarity

DU

Plastics are pollution problem because many plastics

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Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic products

How many zones through which charge passes in a rotary kiln.

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3

4

5

6

The crystals formed due to London forces of interaction are

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ionic

covalent

molecular

metallic

Benzene has a -------- structure

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Pentagonal

Hexagonal

Heptagonal

Tetragonal

Acetic acid is miscible in:

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Water

Alcohol

Either

All of these

How much of NaOH is required to neutralize 1500 cm³of 0.1 N HCl?

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60 g

6 g

4 g

40 g

Acetone is prepared by

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Oxidation of n-propyl alcohol

Oxidation of acetaldehyde

Pyrolysis of calcium acetate

Pyrolysis of calcium acetate as well as acetic acid

An excess of aqueous silver nitrate is added to aqueous barium chloride and precipitate is removed by filtration. What are the main ions in the filtrate

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What is the packet of energy called?

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Electron

Photon

Positron

Proton

On hydrolysis of starch, we finally get

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Glucose

Fructose

Both

Sucrose

Formaldehyde is used to make

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Plastics

Medicine

Antiseptic

All of these

The product of addition polymerization reaction is

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PVC

Nylon

Terylene

Polyamide

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The heat released is enthalpy of neutralization

The heat released is enthalpy of atomization

The heat released is enthalpy of sublimation

The heat released is enthalpy of formation

The symbol of the element whose atoms have the outer most electronic configuration 2s²2p³is

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N

Li

P

Na

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