Question

Ionic bond is absent in 1. nacl
2. Alcl3
3. mgo
4. h2 o

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Answer 1

Answer:

H2O (Water)

Explanation:

because oxygen forms covalent bond with hydrogen to form water.

Answer 2

Answer

Ionic bond is absent in 4. $H_2O$

Explanation :-

• Ionic bond is the bond formed by transfer of electron
• Covalent bond is formed by transfer of electron between reacting species.
• The bond formed between metal and a non-metal is mostly ionic.It can be covalent if inert pair effect is involved.
• The bond formed between non-metals are covalent.They might be ionic if anion of smaller ion is involved.

Examples of covalent compounds :-

$H_2O,CH_4,CCl_4,OF_2,HCHO,SO_2,SO_3$

Examples of ionic compound :-

$MgCl_2,KCl,KOH,NaOH$