Question # 1

A sub sheel that cna accommodate 6 electrons is

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b

s

f

p

A substance whcih can behave as an acid as well as a base is called

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Amphoteric specie

Acid

Base

Neutral specie

Predict themain characteristics of the reactions of metals with acids.

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Metals are dissolved

Hydrogen gas is envolved

Metals are coverted into salts

All the above mentioned characteristics are true

When we move form left to right in a period, atomic number

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Decreases

Increases

First increases then decreases

None of the above

Whcih period of the modern periodic table is considered as incomplete period.

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4th

5th

6th

7th

To Identify the concentration of a particular solution through titration is and application of.

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astrochemistry

analytical chemistry

geochemistry

Organic chemistry

All transition elements belong to

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s and p block

d- block

f-block

d and f block

The man made polymer is

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Polystyrene

Starch

Protein

Cellulose

Formula of Ozone.

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O₂

S₈

CO₂

O₃

How many atoic mass units (amu) are there in one gram.

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1 amu

6.022 x 10²³

10 amu

6.022 x 10²²

The forward reaction takes place from

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Right to left

Left to right

Both a and b

None of these

Allotropes of oxygen are

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2

3

4

5

Mixture can be separated by means of

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Nuclear method

Phyical medhod

Chemical Method

All of these

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