An element Z has a combining power of 3. Which of the following formulae is correct of its compound?
ZS3
ZSO3
ZS04
Z03
Z3Cl2
Correct answer is D
No explanation has been provided for this answer.
aluminium
calcium
Iron
sodium
magnesium
Correct answer is A
No explanation has been provided for this answer.
combining volumes
conservation of mass
definite proportion
multiple proportion
reciprocal proportion.
Correct answer is B
No explanation has been provided for this answer.
[H+]
–log [H]
–log [H+]
log [H]
log [H+]
Correct answer is C
No explanation has been provided for this answer.
Which of the following compounds is unsaturated?
Cyclohexane
Methoxyethane
1 ,2-dibromoethane
2,2,3-trimethylpentane
3-methylbut-l-ene
Correct answer is E
No explanation has been provided for this answer.