MEDIUM
10th CBSE
IMPORTANT
Earn 100

The elements of group 16 are also called as .  (Chalcogens / Halogens / Pnictogens)

100% studentsanswered this correctly

Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 21
Highest refractive index is noticed in _____. (platinum / diamond)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 22
The idea of telluric helix for arrangement of elements was given by _____. (Newlands / Chancourtois)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 23
First man made atom is _____.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 24
Highest melting point element is _____. (sodium / potassium / tungsten)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 25
Maximum contribution for the man-made atom goes to _____.
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 9>Q 1
Which of the following is not a Dobereiner's triad?
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 9>Q 2
According to the Newlands' law of octaves, C should resemble in its properties with
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 9>Q 3
The first meaningful attempt to classify elements was made by