Question # 1

Ethers show the phenomenon of

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Position Isomerism

Functional group isomerism

Metamerism

Chain isomerism

In which hybridization bond angle is maximum

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sp3

sp2

sp

sp3 and sp have same angles

Phenol on heating with concentrated nitric acid forms

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o-nitrophenol

T.N.T

Na2CO3

Cyclohexanol

Which enzyme is not involved in fermentation of starch.

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Diastase

Zymase

Urease

Invertase

The concept of atomic number was introduced by

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Alrazi

Mendeleeve

Moseley

Dobereiner

The reaction between concentrated H2SO4 and glucose give carbon and water. In this reaction H2SO4 acts as.

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An acid

An oxidising agent

Dehydrating agent

A reducing agent

Which one of the following can best be used to distinguish between samples of ethane and ethene

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Aqueous BaCl2

Aqueous bromine

Lime water

Litmus solution

Which one is not use of lime

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Extraction of metals

Ceramic industry

Preparation of bleaching powder

Preparation of gypsum

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.

According to Lewis concept ethers behave as

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Acid

Base

Acid as well as a base

Noe of them

When acetylene is heated at 300 ^oC in copper tube, the product obtained is.

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Benzene

Alkyl benzene

Ether

Alcohol

The conversion of benzene to chlorobenzene is a

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Addition reaction

Elimination reaction

Substitution reaction

Dehydration process

Which one of the following compounds show geometrical isomerism in it.

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1- pentene

1,1 dichloro ethane

all of these

2- Pentene

Mono saccharides contain carbon atoms.

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3 to 6

3 to 7

3 to 9

only six

The correct name of CH3-CH= CH2-OH is

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2-buten -4 -ol

3-buten-I-ol

2-Buten -I-ol

Ethylene glycol

Alkali metal whose carbonate is is relatively less stable and decomposes giving its oxides is.

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Li

Ba

K

Rb

Which halogen will react spontaneously with Au(s) to produce Au³⁺

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Br₂

F₂

I₂

Cl₂

The benzene molecule contains.

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Three double bonds

Two double bonds

One double bonds

Delocalized sigma electron charge

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