61. Covalently bonded molecules have the low melting points and boiling points because? A. Intermolecular forces are moderate B. Intermolecular forces are strong C. Intermolecular forces are weak D. Intermolecular forces are very strong Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
62. How many valence electrons are there in an atom of phosphorus? A. 4 B. 3 C. 2 D. 5 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
63. The maximum number of bonds between two atoms of a covalent bond can be . . . . . . . . A. 1 B. 3 C. 2 D. 4 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
64. Which of the following contains both ionic and covalent bond? A. H2O B. NaOH C. C6H6 D. CO2 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
65. The bond which is present between water molecules is A. electrovalent bond B. covalent bond C. hydrogen bond D. vander Waal's bond Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
66. The formula for lithium nitride is: A. Li3N2 B. LiN C. Li3N D. Li2N Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
