set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on atomic structure, molecules and nuclear chemistry topic of general science mcq
(a) Two protons
(b) Two protons and two neutrons
(c) Only one neutron
(d) One proton and two neutrons
The correct answers to the above question in:
Answer: (b)
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Read more chemistry basic Based General Science Questions and Answers
Question : 1
Which one among the following is correct regarding 20Ne, 23Na+, 19F– and 24Mg2+?
a) They are isoelectronic with each other
b) They are isotopes of each other
c) They are isomers of each other
d) All of the above
Answer »Answer: (a)
Question : 2
Radioactivity was discovered by
a) Becquerel
b) Bohr
c) Rutherford
d) Madam Curie
Answer »Answer: (a)
Question : 3
In an atom valence electron are present in
a) next to outermost orbit
b) first orbit
c) outermost orbit
d) any one of its orbit
Answer »Answer: (c)
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