Q.

Assertion (A) Mendeleev's left the gap under aluminium and silicon and called these Eka-aluminium and  Eka-silicon, respectively.Reason (R) Dobereiner arranged elements on the basis of increasing atomic number.

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

Both A and R are correct; R is the correct explanation of A.

b

Both A and R are correct; and R is not the correct explanation of A.

c

A is correct; R is incorrect.

d

R is correct; A is incorrect.

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Dobereiner arranged elements on the basis of increasing atomic weights
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
Assertion (A) Mendeleev's left the gap under aluminium and silicon and called these Eka-aluminium and  Eka-silicon, respectively.Reason (R) Dobereiner arranged elements on the basis of increasing atomic number.