[" Which of the totowng is a secondary calt? "],[[" IA) Dry cel "," fb) Mercury cell "],[" (C) NI-Cd OBI "]]

Which of the following is a secondary cell : Daniel dry cell and lead accumulator.

Which of the following is a secondary cell? Dry cell Leclanche cell Mercury cell None of these One of the fuel cell uses the reaciton of hydrogen and oxygen to form water. Write down the cell reaction taking place in the anode and cathode of that fuel cell.

Answer the following : Classify the following applications into the type of cells (Lithium ion cells , dry cells , Ni-Cd cells ) Radio , torches , smart phones , cars , uniterrupted power supplies , trucks , motorcycles , wall clocks , laptops .

Which of the following is a correct statement? (a) Pt shows (+4) oxidation state but Ni does not (b) Most stable oxidation state for both Sc and Ga is (+3) (c) Zn, Cd and Hg all three show (+2) state but only Hg also shows (+1) state (d) (+1) state does not exist for any alkaline earth metal Correct Answer is:

Write electrode reactions taking place in Ni-Cd cell. Is it primary or secondary cell?

Match the following {:(,"column I" ,, "column II"),((A) ,"Leclanche cell" , (p),"primary battery" ),((B) , "Car battery" , (q),"Secondary battery"),((C ), "Fuel cell" , (r),"converts energy of combustion of" H_(2)","CH_(4) "etc into eletrical energy"),((D) , "NICAD cell" , (s),"Anode :"Zn rarr Zn^(2+)+2e^(-)),(,,,"Cathode :" MnO_(2)+NH_(4)^(+)+e^(-)rarrMn(OH)+NH_(3)),(,,(t),"Cd(s)+2Ni(OH)_(3)(s)rarrCdO(s)+2Ni(OH)_(2)(s)+H_(2)O(I)):}

Which of the following statement regarding entry of HIV into target cell is/are correct? A. The initial binding event occurs between viral Gp120 and CD, molecules. B. It belongs to genus Flavivirus. C. Viral entry proceeds through fusion of viral envelop with the target cell membrane . D. Only reverse transcriptase gain entry inside the target cell