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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

Which one of the following has polar covalent bond ?
A HF
B CH4
C H2
D N2
Correct Answer: HF
Bond will beionic when E.N difference of bonded atom is ____________________?
A Equal to 1.7
B Greater than 1.7
C Less than 1.7
D No specificity exists
Correct Answer: Greater than 1.7
Ionic bond is produced after complete transfer of ________________ ?
A Nucleus
B Neutrons
C Electrons
D Protons
Correct Answer: Electrons
In a period electronegativity from left to right_________________?
A Increases
B Decreases
C Remain constant
D Variable trend
Correct Answer: Increases
Elements having high I.P values are____________________?
A Metals
B Non metals
C Liquids
D Solids
Correct Answer: Non metals
Ionization energy in a period generally ___________________?
A Increases
B Decreases
C No change
D Variable trend
Correct Answer: Increases
In a group ionic radius ?
A Increases
B Decreases
C No change
D Variable trend
Correct Answer: Increases
An atom loses or gains electrons to__________________?
A Gain stability
B Form a bond
C Complete its outermost shell
D all are accurate justifications
Correct Answer: all are accurate justifications
Which of the following have their outer most shell complete in atomic form ?
A Noble gases
B Alkali metals
C Coinage metals
D Gun metals
Correct Answer: Noble gases
Which one shows high %age of the ionic character ?
A H2O
B HF
C HCI
D HBr
Correct Answer: HF
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