A compound has an empirical formular CH2O and molecular mass of 90.
[H = 1.00, C = 12.0, O = 16.0]
C4H10O2
C3H10O2
C3H6O3
C2H2O4
Correct answer is C
(CH2O)n = 90; (12 + (1 x 2) + 16)n = 90
(12 + 2 + 16)n = 90; 30n = 90; n = 9030; n = 3
(CH2O)3 = Molecular formula ; = C3H6O3
The complete hydrogenation of benzene gives
Cyclohexene
Cyclohexane
Hexene
Hexane
Correct answer is B
No explanation has been provided for this answer.
Which of the following metals is the strongest reducing agent?
Sodium
Silver
Potassium
Copper
Correct answer is C
No explanation has been provided for this answer.
Cu
CuO
H2
H2O
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements about an electrochemical cell is correct? Oxidation occurs
At the anode
At the cathode
Through the salt bridge
In the aqueous solution
Correct answer is A
No explanation has been provided for this answer.