I only
II only
I and III only
II and III only
Correct answer is B
No explanation has been provided for this answer.
Ripening of fruits is hastened by using
Ethanol
Ethane
Ethene
Ethyne
Correct answer is C
No explanation has been provided for this answer.
Alkane
Alkanol
Alkanoate
Alkyne
Correct answer is B
No explanation has been provided for this answer.
Amino acids are obtained from proteins by
Hydrolysis
Oxidation
Polymerization
Reduction
Correct answer is A
No explanation has been provided for this answer.
Al(s) + Cu2+(aq) \(\to\) Al3+(aq) + Cu(s)
2Al(s) + Cu2+(aq) \(\to\) 2Al(aq) + Cu(s)
2Al(s) + 3Cu2+(aq) \(\to\) 3Cu(s) + 2Al3+(aq)
3Al(s) + 2Cu2+(aq) \(\to\) Cu(s) + 3Al3+(aq)
Correct answer is C
Al(s) \(\to\) Al3+(aq) + 3e- ______(i)
Cu2+(aq) + 2e- \(\to\) Cu(s) ________(ii)
To balance the electrons, multiply equation (i) by 2 and equation (ii) by 3 and then add the resulting equations
2Al(s) \(\to\)2Al3+(aq) + 3e-
3cu2+(aq) + 6e- \(\to\)3Cu(s)
2Al(s) + 3Cu2+(aq) \(\to\) 3Cu(s) + 2Al3+(aq)