Chemistry MCQs / Q&A

Zn(s)/Zn+2(aq) 1M | | Cu+2(aq) 1M/Cu(s) is representation of reaction in______________? A. Daniel cell B. Downs cell C. Voltaic cell (Correct) D. Nelsons cell

Which set of quantum numbers is not allowed? A. n=2,l=1,m1=0,ms=+1/2 B. n=2,l=1,m1=-1,ms=+1/2 C. n=2,l=0,m1=0,ms=-1/2 D. n=2,l=2,m1=1,ms=-1/2 (Correct)

Which of the following will not change the concentration of ammonia at the equilibrium ? A. Increase of pressure B. Increase of volume C. Addition of catalyst (Correct) D. Decrease of temperature

Which one does not exhibit aldol condensation___________________? A. Ethanal B. Acetone C. Benzaldehyde (Correct) D. Butanone

Which one of the following is also known as lactic acid ? A. 3-Hydroxy propanoic acid B. 2-Hydroxy propanoic acid (Correct) C. 2-hydroxy butanoic acid D. 3-hydroxy butanoic acid