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WorksheetsCHEMISTRY_QUIZ-1
Total questions: 10
Worksheet time: 5mins
1.Identify the group which is not a Dobereiner triad
a. Li, Na, K
b. Be, Mg, Cr
c. Ca, Sr, Ba
d. Cl, Br, I
2.Law of octaves was given by
a.Meyer
b.Mendeleev
c.Newland
d.Mosley
4.In the Mendeleev's periodic table properties of the elements are the periodic function of their
a.Atomic Number
b.Atomic Mass
c.Atomic volume
d.NOTA
4. Eka boron known as__________
a.Gallium
b.Scandium
c.Calcium
d.Germanium
5.Eka silicon known as_______
a.Boron
b.Germanium
c.Gallium
d.Scandium
6.Eka Aluminium Known as_______
a.Gallium
b.Germanium
c.Scandium
d.None of this
7.Newland's octave theory applicable till_____
a.Carbon
b.Calcium
c.Chlorine
d.NOTA
8.Which of the following is/are a Dobernier triad/s?
a.ClBr,I.
b.Li,Na,K
c.Fe,Cu,Zn.
d.Both a and b
9.Mendeleev corrected mass of the________element from 13 to 9.
a.Beryllium
b.Boron
C.Bismuth
d.NOTA
The number of horizontal rows and vertical columns present in Mendeleev's periodic table,respectively.
a.7,8
b.8,6
c.7,18
d.6,8
