Chemistry Most Important MCQ // All Exam NEET JEE 11TH 12TH

Chemistry Most Important MCQ // All Exam NEET JEE 11TH 12TH

Chemistry Most Important MCQ: In this Article We Provides To Chemistry Questions With Answers in MCQ For All Exam Like NEET JEE CET 11th 12th CBSE STATE Board Exams Oriented Chemistry Question.

Electrovalent compounds are


– low melting
– insoluble in polar solvents
– conductors in the fused state
– none of the above

>> conductors in the fused state

Ionic compounds don’t conduct electricity in


– solution
– fused state
– solid state
– none of the above

>>solid state

When an element of very low ionization potential reacts with an element of very high electron affinity


– a covalent bond is formed
– an electrovalent bond is formed
– a metallic bond is formed
– no bond is formed

>>an electrovalent bond is formed

The bond between two atoms of the same element is


– polar covalent bond
– ionic bond
– non-polar covalent bond
– none of the above

>>non-polar covalent bond

The percentage of ionic character of a bond is calculated by the difference in


– size of atoms
– ionization potential of atoms
– electronegativity of atoms
– atomic volumes of atoms

>>electronegativity of atoms

In which of the following C-C bond length is least?


– benzene
– ethylene
– acetylene
– diamond

>> acetylene

The paramagnetic nature of oxygen molecule is explained by


– Valence bond theory
– Heitler London theory
– Hund Mulliken theory
– None of the above

>>Hund Mulliken theory

The bonds present in CuSO4.5H2O are


– electrovalent and coordinate
– covalent and coordinate
– electrovalent and covalent
– electrovalent, covalent and coordinate

>>electrovalent, covalent and coordinate

An element having 4 electrons in its outermost orbit forms bond by


– losing electrons
– gaining electrons
– sharing electrons
– any of the above

>>sharing electrons

The decomposition of KClO3 to KCl and O2 on heating is an example of


– intermolecular redox change
– intramolecular redox change
– disproportionation or auto redox change
– none of these

>>