set 4 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on classification of elements, chemical bonding, periodicity in properties & physical transformation topic of general science mcq
(a) Heat
(b) Sound
(c) Light
(d) Acid
The correct answers to the above question in:
Answer: (a)
Practice classification of elements, chemical bonding, periodicity in properties & physical transformation (set 4) Online Quiz
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Read more chemistry Based General Science Questions and Answers
Question : 1
The atomic number of an element tells you the number of ................ in a neutral atom.
a) neutrons
b) electrons
c) positrons
d) All of these
Answer »Answer: (b)
Question : 2
What are the types of bonds present in CuSO45H2O ?
a) Electrovalent and coordinate covalent
b) Electrovalent, covalent, coordinate covalent and hydrogen bonds
c) Electrovalent and covalent
d) Covalent and coordinate covalent
Answer »Answer: (b)
Question : 3
Which of the following statement is not true about noble gases?
a) They exist in atomic form
b) They are radioactive in nature
c) They are non-metallic in nature
d) Xenon is the most reactive among them
Answer »Answer: (b)
Question : 4
If the two members of a Dobereiner triad are phosphorus and antimony, the third member of this triad is –
a) sulphur
b) iodine
c) arsenic
d) calcium
Answer »Answer: (c)
Question : 5
Which of the following is not a representative element?
a) K
b) Ba
c) Fe
d) N
Answer »Answer: (c)
Fe is a transition element.
Question : 6
Which of the following is not isoelectronic with O2– ?
a) Na+
b) F–
c) N3–
d) Ti+
Answer »Answer: (d)
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