MEDIUM
10th CBSE
IMPORTANT
Earn 100

The element X forms a compound X2Y. Suggest an element that Y might be and give reasons for your choice.

Important Questions on Periodic Classification Of Elements

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 67
An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. How many electrons would be there in the outermost shell of element X?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 67
An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. To which group of the periodic table does the element X belong?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 67

An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. Write the formula of the compound formed when X reacts with chlorine.

A. XClB. XCl2C. XCl3

(Enter your correct answer as A, B or C)

MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 68
An element A has an atomic number of 6. Another element B has 17 electrons in its one neutral atom. In which groups of the periodic table would you expect to find these elements ?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 68
An element A has an atomic number of 6. Another element B has 17 electrons in its one neutral atom. What type of bond is formed between A and B? [Covalent bond / Ionic Bond]
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 68
An element A has an atomic number of 6. Another element B has 17 electrons in its one neutral atom. Suggest a formula of the compound formed between A and B.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 69
The elements A,B,C and D belong to groups 1,2,14 and 17 respectively of the periodic table. Which of the following pairs of elements would most likely produce a covalent bond?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 5 - Periodic Classification Of Elements>Questions Based on High Order Thinking Skills (HOTS)>Q 70
An element X from group 2 reacts With element Y from group 16 of the periodic table. 
(a) What is the formula of the compound formed?
(b) What is the nature of bond in the compound formed?