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10th CBSE
IMPORTANT
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What type of oxide would Eka-aluminium form?

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Important Questions on Periodic Classification of Elements

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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 20

Three elements B, Si and Ge are

 

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 21
Which of the following elements will form an acidic oxide?
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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 22

Three elements B, Si and Ge are:

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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 23

Which one of the following depicts the correct representation of the atomic radius(r) of an atom?

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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 24
Which one of the following does not increase while moving down the group of the periodic table?
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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 25
On moving from left to right in a period in the periodic table, the size of the atom
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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Multiple Choice Questions (MCQs)>Q 26
Which of the following set of elements is written in order of their increasing metallic character?
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10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 5 - Periodic Classification of Elements>Short Answer Type Questions>Q 27
The three elements A,B and C with similar properties have atomic masses X, Y and Z respectively. The  mass of Y is approximately equal to the average mass of X and Z. What is such an arrangement of elements called as? Give one example of such a set of elements.