Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 9

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10th CBSE

IMPORTANT

Earn 100

An element $E$ having electronic configuration $2, 8, 2$ combines separately with nitrate, sulphate and phosphate radicals.
Identify the group to which the element $E$ belongs to?

Important Questions on Periodic Classification of Elements

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10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 9

An element

E

having electronic configuration

2, 8, 2

combines separately with nitrate, sulphate and phosphate radicals? Which compound will be formed? Why?

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10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 10

Three elements

X

,

Y

and

Z

have atomic number

7, 8

and

9

respectively. Identify the positions of these elements in the periodic table mentioning their period and group.

MEDIUM

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 10

Three elements

X, Y

and

Z

have atomic number

7, 8

and

9

respectively. Which among the three elements is most reactive? Give reasons.

MEDIUM

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 10

Three elements

X, Y

and

Z

have atomic number

7, 8

and

9

respectively. Arrange these elements in decreasing order of their atomic size.

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10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 11

Answer the following giving reasons:
Which element has smaller size, Oxygen or Fluorine?

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10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 11

Answer the following giving reasons:
Which element is more metallic, Sodium or Chlorine?

MEDIUM

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 12

The electronic configuration of three elements

A, B

and

C

are

2; 2, 6

and

2, 8, 2

respectively. Which element belongs to second period?

MEDIUM

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 12

The electronic configuration of three elements

A, B

and

C

are

2; 2, 6

and

2, 8, 2

respectively. Which element belongs to eighteenth group?