HARD
10th CBSE
IMPORTANT
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Elements of 2nd period are known as . (typical elements / bridge elements)

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Important Questions on Periodic Classification of Elements

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 18
The number of transition series in the periodic table is _____.(4/6)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 20
The elements of group 16 are also called as _____.  (Chalcogens / Halogens / Pnictogens)
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?