Chemical Bonding
Telangana Board · Class 10 · Physical Sciences
Practice quiz for Chemical Bonding — Telangana Board Class 10 Physical Sciences. MCQs and questions with answers to test your preparation.
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Quick Quiz: Chemical Bonding
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Which of the following is the correct Lewis dot structure for sodium (Na)?
What type of bond is formed between sodium (Na) and chlorine (Cl) in NaCl?
According to the octet rule, atoms tend to achieve how many electrons in their valence shell?
In the formation of water (H₂O), how many covalent bonds are formed?
Sample Questions
Which of the following elements can form both ionic and covalent bonds?
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Carbon, Hydrogen, Oxygen, Nitrogen
Carbon, hydrogen, oxygen, and nitrogen are non-metals that can form covalent bonds by sharing electrons and can also participate in ionic bonding under certain conditions. Helium is a noble gas and rarely forms bonds.
Which of the following properties are characteristic of ionic compounds?
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High melting points, Conduct electricity when dissolved in water, Usually soluble in polar solvents, Form crystalline solids
Ionic compounds have high melting and boiling points due to strong electrostatic forces, conduct electricity in solution due to mobile ions, are soluble in polar solvents, and form regular crystalline structures.
Noble gases are chemically inert because they have:
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Complete valence shell
Noble gases have complete valence shells (8 electrons except helium which has 2), making them stable and unreactive under normal conditions.
In the molecule NH₃ (ammonia), the shape is:
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Pyramidal
NH₃ has a pyramidal shape due to the presence of one lone pair of electrons on nitrogen, which causes bond angle deviation from tetrahedral geometry.
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