Newlands could classify elements only upto

untitled

Quiz
•
Chemistry, Science
•
7th Grade
•
Hard
Duttaluru Sairoop
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Copper.
Chlorine.
Calcium.
Chromium.
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
The most significant contribution towards the development of periodic table was made by
Mendeleev.
Avogadro.
Dalton.
Cavendish.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Law of Triads was referred to as ___ relationship.
Lothar Meyer's
Mendeleev's
Newlands's
Dobereiner's
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mendeleev classified elements in
increasing order of atomic groups.
eight periods and eight groups.
six periods and eight groups.
eight periods and seven groups
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Noble gases were included in Mendeleev's periodic table in the
1st Group.
7th Group.
8th Group.
None of these
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Mendeleev's predictions for the elements Eka-aluminium and Eka-silicon were discovered later as ___ and ___ respectively.
praseodymium; gadolinium
gadolinium; germanium
gallium; germanium
praseodymium; gallium
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The atomic mass of Sr as predicted according to the Dobereiner's law of triads in the triad Ca(Z=40), Sr, Ba(Z=137)is ___.
80
88
100
85
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