Which of the following groups does not contain an ionic compound?

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Which of the following groups does not contain an ionic compound?

Which of the following groups does not contain an ionic compound?
a-HCN,NO2,CA(NO3)2
b-KOH,CCL4,SF4
c-CH2O,H2S,NH3

2007-01-11 23:58:11 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

c-CH2O,H2S,NH3

In group a: Ca(NO3)2 is an ionic compound.

In group b: KOH is an ionic compound.

In group c: ALL ARE COVALENT COMPOUNDS!

2007-01-12 00:02:42 · answer #1 · answered by Som™ 6 · 1⤊ 0⤋

Simply look at each element and see whether they are metal or non metals.

In most cases
Metal + metal = metallic
Metal + non metal = ionic
Non metal + non metal = covalent

Polyatomic ions = ionic.
Should be pretty obvious from there.

2007-01-12 08:04:41 · answer #2 · answered by koala_paradise 3 · 0⤊ 0⤋