KCET 2013 Biology Question Paper with Answer Key PDF (May 1)

KCET Questions

• 1.

  Which one of the following is an amphoteric oxide?

  • $ZnO$
  • $Na _{2} O$
  • $SO _{2}$
  • $B _{2} O _{3}$
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• 2.

  All veins carry deoxygenated blood except

  • pulmonary vein
  • hepatic vein
  • hepatic portal vein
  • renal vein
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• 3.

  Alary muscle is associated with

  • heart & circulation
  • malpighian tubules & excretion
  • trachea & respiration
  • none of the above
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• 4.

  On the basis of standard electrode potential of redox couples given below, find out which of the following is the strongest oxidising agent. (E$^{\circ}$ values : $Fe^{3+}\left| Fe^{2+}=+ 0.77 V ; I_{2\left(s\right)}\right|I^{- } =$ $+ 0.54 V; Cu^{2+}\left|Cu= + .34 V ; Ag^{+}\right| Ag = + 0.80 V$)

  • $Fe^{3+}$
  • $I_{2(s)}$
  • $Cu^{2+}$
  • $Ag^{+}$
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• 5.

  A vessel at 1000 K contains $CO_2$ with a pressure of 0.5 atm. Some of the $CO_2$ is converted into CO on the addition of graphite. It the total pressure at equilibrium is 0.8 atm, the value of K is

  • 3 atm
  • 0.3 atm
  • 0.18 atm
  • 1.8 atm
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• 6.

  Plexiglass is a commercial name of

  • glyptal
  • polyacrylo nitrile
  • polymethyl methacrylate
  • polyethyl acrylate
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