Which of these is a covalent compound?
ANaCl
BCaO
CK2SO4
DCCl4
Answer & Solution
Correct answer: A. NaCl
1. CCl4 has only non-metal atoms (carbon and chlorine).
2. They share electrons to form four C-Cl covalent bonds.
3. NaCl, CaO and K2SO4 contain metals and are ionic.
4. So CCl4 is the covalent compound.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 2 'Chemical Bonding'_
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