Cu
Zn
Al
Pb
Fe
Correct answer is C
No explanation has been provided for this answer.
How many isomers can be obtained from C4H10?
0
1
2
3
4
Correct answer is C
No explanation has been provided for this answer.
Which of the following is not true of the rusting of iron?
Rusting is a reduction process
Rusting of iron takes place in the presence of oxygen and moisture
the rust formed is reddish brown
the major constituent of rust is hydrated iron (lll) oxide
rusting is similar to burning
Correct answer is A
No explanation has been provided for this answer.
Which of the following is not decomposed by heat?
CaCO3
CuCO3
ZnCO,sub>3
Na2CO3
MgCO3
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements is not correct?
Carbon exhibits allotropy
Sulphur exhibits allotropy
Chlorine exhibits allotopy
Nitrogen is a gas
Argon is a noble gas
Correct answer is C
No explanation has been provided for this answer.