Question

49. Which of the following groups contain only covalent compounds:
a. CH4, CO2
b. NaCl, CaCl2
c. CH4, NaCI
d. CO2, Cao
A lichteraar will diffuse​

Answer 1

Answer:

nacl is a ionic compound

(infact the most common and first taught)

so dont consider option b and c

cao is also made of ca2+ and o2- hence ionic

Explanation:

so whats left?

option a

btw

ch4 is a classic example of covalent bond

co2 is common to a and d

hence the answer is simply (a)

if u use this reductionist approach, u can definitely solve such questions without using brainly

also

please do mark me as brainliest