List of Important GK Questions from Science (Chemistry) for SSC CGL Exam Set 13

List of Important GK Questions from Science (Chemistry) for SSC CGL Exam
List of Important GK Questions from Science (Chemistry) for SSC CGL Exam Set 13:
The List of Important GK questions from general science were given here, Candidates those who are preparing for the SSC CGL Exam can use this material. We also provide GK Questions from the topics such as, Indian Polity, History, Geography, Science, Economic and Commerce. Follow Us Daily for More Study Materials.

1).The pioneer in the preparation of Periodic Table is __________.
a)    Newton
b)    Moseley
c)    Mendeleev
d)    Avogadro



2).Mendeleev’s Periodic Table is based on ____________.
a)    Atomic number
b)    Atomic mass
c)    Electronic configuration    
d)    Atomic volume   



3).Moseley studied the X-ray emission of metals by plotting the graph between __________.
a)    Frequency against atomic number    
b)    Square root of frequency against atomic numbers
c)    Frequency against atomic mass
d)    Square root of frequency against atomic mass



4).Modern periodic law is based on _____________.
a)    Atomic number
b)    Atomic mass
c)    Mass of an electron
d)    Atomic volume



5).In an atom __________ will be always equal.
a)    Number of protons and electrons   
b)    Number of protons and neutrons
c)    Number of electrons and neutrons
d)    Number of neutrons and orbits



6).Modern periodic law was suggested by ___________.
a)    J.J. Thomson
b)    Henry Moseley
c)    John Dalton
d)    Mendeleev



7).According to modern periodic law, the elements are arranged on their________.
a)    Increasing order of atomic number   
b)    Decreasing order of atomic number
c)    Increasing order of atomic mass
d)    Decreasing order of atomic mass



8).Modern periodic table is classified into different blocks.
a)    Five
b)    Four
c)    Six
d)    Eighteen



9).The number of elements present in 2nd and 3rd periods is ________.
a)    2
b)    8
c)    18   
d)    32



10).Short period refers to ____________.
a)    First period
b)    First three periods
c)    Fourth and fifth periods
d)    Sixth and seven periods



Answers:                                 
1). c)   2). d)   3). b)   4). a)   5). a)   6). b)   7). a)   8). b)   9). b)   10). b)