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WorksheetsChemical bonds
Total questions: 9
Worksheet time: 11mins
Which of these statements is/are correct?
Valence electrons are electrons occupying the innermost shell.
Covalent bond is form due to sharing of a pair of electron by two atoms.
The strength of a covalent bond depends on number of shared electrons
The bond between the two oxygen atoms in a molecule of oxygen is single covalent bond.
Which of these statements is/are correct?
Electronegativity is the atom’s affinity for electrons.
The more electronegative an atom is, the less strongly it attracts shared electrons toward itself
The bond between C and H atom in methane is non polar covalent bond.
The bond between H atom and N atom in ammonia polar covalent bond
(a) is formed by the attraction of oppositely charged ions.
Which of these statements is/are correct?
In a water molecule, the hydrogen atom has partially positive charge while the oxygen atom has a partially negative charge.
In an ammonium molecule, the hydrogen has partially positive charge while the N atom has a partially negative charge.
The hydrogen atom of a water molecule is linked by Van der Walls interaction to nitrogen atom of ammonium
Hydrogen bond is a strong bond while Van der Walls interaction is a weak bond.
Van der Waals interaction between molecule exists due to impermanent local partial charges.
(a) are compounds with the same molecular formula but different structures and properties
Why pentane and 2-methyl butane are called structural isomers.
Which of these statements is/are correct?
Geometric isomers have the same covalent arrangements but differ in spatial arrangements of the atom
The two Xs in cis isomer are on opposite side.
The two Xs in trans isomer are on the same side.
Enantiomer exists due to differences in the spatial arrangement around an asymmetric carbon.
Which of these statements is/are correct.
Functional group is the part of the molecule that involves in chemical reaction.
Hydroxyl group is polar due to the presence of a strongly electronegative oxygen atom.
An aldehyde has a carbonyl group positioned at the end of the carbon skeleton while a ketone has an internal carbonyl group
Carboxyl group has base properties because the covalent bond between oxygen and hydrogen is polar.
Write the correct structural formula for each of the functional group.
