Chemical Bonding and Molecular Structure NEET Questions. We covered all the Chemical Bonding and Molecular Structure NEET Questions in this post for free so that you can practice well for the exam.
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Mock Test on Chemical Bonding and Molecular Structure for NEET Students
Consider the following statements. I. Formation of cations occurs by loss of electrons. II. The formation of anions occurs through the gain of electrons. Which of the statement given above is/are correct?
(a) Only I
(b) Only II
(c) Both I and II
(d) None of these
Option c – Both I and II
Which of the following contains both ionic and covalent bonds?
(a) H₂O
(b) NaOH
(c) C6H6
(d) CO₂
Option b – NaOH
How many covalent bonds are present in a Chloropropane molecule having the molecular formula, C3H₂CI?
(a) 6
(b) 8
(c) 9
(d) 10
Option d – 10
Which one among the following is a covalent compound?
(a) Calcium chloride
(b) Magnesium fluoride
(c) Sodium chloride
(d) Carbon tetrachloride
Option d – Carbon tetrachloride
Molten NaCl is a good conductor of electricity due to
(a) free electrons
(b) free ions
(c) free molecules
(d) None of these
Option b – free ions
With reference to ionic compounds, consider the following statements. I. Ionic compounds are insoluble in alcohol. II. ionic compounds in the solid state are good conductors of electricity. Which of the statement given above is/are correct?
(a) Only I
(b) Only Il
(c) Both I and II
(d) Neither I nor II
Option a – Only I
Study the following statements. I. A bond formed by the transfer of electrons between atoms of an element is called an ionic bond. II. A bond formed by sharing of electrons between atoms of the elements is called a covalent bond. Which of the statements given above is/are correct?
(a) Only I
(b) Only Il
(c) I and II
(d) None of the above
Option c – I and II
Which of the following bond is the weakest?
(a) Coordinate bond
(b) Hydrogen bond
(c) Vander Waals’ forces
(d) Covalent bond
Option c – Vander Waals’ forces
A metallic bond is
(a) ionic
(b) polar covalent
(c) non-polar covalent
(d) electrostatic in nature
Option d – electrostatic in nature
If the formula of the sodium salt of an anion X is Na2X, then the formula of its aluminum salt would be
(a) AIX
(b) AIX3
(c) Al₂X3
(d) Al3X₂
Option c – Al₂X3
The atomic number of an element is 8. How many electrons will it gain to form a compound with sodium?
(a) One
(b) Two
(c) Three
(d) Four
Option b – Two
ionic solids
(a) are hard and brittle.
(b) are generally high melting points.
(c) can be melted to form liquids that are electrical conductors.
(d) All of the above
Option d – All of the above
Electrovalent compounds’
(a) melting points are low.
(b) boiling points are low.
(c) conduct current in a fused state.
(d) insoluble in a polar solvent.
Option c – conduct current in a fused state
The electrovalent compounds are made up of
(a) electrically charged molecules.
(b) neutral molecules.
(c) neutral atoms.
(d) electrically charged atoms or groups of atoms.
Option d – electrically charged atoms or groups of atoms
The electrovalent bond formation depends on
(a) ionization energy
(b) electron affinity
(c) lattice energy
(d) All of the above
Option d – All of the above
Examples of ionic bonds are
(a) NaCl, KCI, MgF2, CaCl₂
(b) H₂, Cl₂, O2, N₂, CH₂
(c) SO2, SO3, 03
(d) H₂O, NH3
Option a – NaCl, KCI, MgF2, CaCl₂
An atom of sodium loses one electron and a chlorine atom accepts one electron. This results in the formation of sodium chloride molecules. This type of molecule will be
(a) coordinate
(b) covalent
(c) electrovalent
(d) metallic bond
Option c – electrovalent
What happens when a chemical bond is formed?
(a) Energy is always absorbed.
(b) Energy is always released.
(c) More energy is released than it is absorbed.
(d) Energy is neither released nor absorbed.
Option b – Energy is always released
When a chemical bond is formed, there is a decrease in
(a) kinetic energy
(b) potential energy
(c) repulsive force
(d) attractive force
Option b – potential energy
Which of the following theory said that bond is formed between two atoms either by sharing or transfer of valence electrons?
(a) Valence shell electron pair repulsion
(b) Molecular orbital theory
(c) Valence bond theory
(d) Electronic theory of chemical bonding
Option d – Electronic theory of chemical bonding
The product of equivalent weight and valency of an element is equal to
(a) vapor density
(b) specific heat
(c) atomic weight
(d) molecular weight
Option d – molecular weight
The methane molecule has
(a) a double bond
(b) a triple bond
(c) a single covalent bond
(d) None of the above
Option c – a single covalent bond
In a double covalent bond, there is a sharing of
(a) two electrons
(b) four electrons
(c) six electrons
(d) three electrons
Option b – four electrons
Assertion (A) Double bonds cause more repulsion than single bonds. Reason (R) Triple bonds cause more repulsion than double bonds. Codes
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Option b – Both A and R are true, but R is not the correct explanation of A
Proton plays an important role in which type of bonding?
(a) Electrovalent
(b) Hydrogen
(c) Covalent
(d) Coordinate
Option d – Coordinate
The type of bond formed during the hydration of the cation is
(a) ionic
(b) covalent
(c) electrostatic
(d) dative bond
Option d – dative bond
The bond which is present between water molecules is
(a) electrovalent bond
(b) covalent bond
(c) hydrogen bond
(d) van der Waal’s bond
Option c – hydrogen bond
Liquid water is denser than ice due to
(a) higher surface tension
(b) hydrogen bonding
(c) Vander Waals’ force
(d) covalent bonding
Option b – hydrogen bonding
Covalent compounds are generally
(a) soluble in water
(b) insoluble in water
(c) ionize in water
(d) hydrolyze in water
Option b – insoluble in water
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