KCET 2009 Chemistry Question Paper with Answer Key PDF (May 7)

KCET Questions

• 1.

  After absorbring a slowly moving neutron of Mass mN (momentum $\approx$ 0) a nucleus of mass M breaks into two nuclei of masses $m_1$ and $5m_1$ ($6\, m_1 = M + mN$ ) respectively. If the de Broglic wavelength of the nucleus with mass $m_1$ is $\lambda$, the de Broglie wevelength of the nucleus will be:

  • $5\,\lambda$
  • $\lambda $\5
  • $\lambda$
  • $25\,\lambda$
  View Solution

  ---

• 2.

  Which one of the following has the regular tetrahedral structure ?

  • $XeF_4$
  • $[Ni(CN)+4]^{2-}$
  • $BF^-_4$
  • $SF_4$
  View Solution

  ---

• 3.

  All veins carry deoxygenated blood except

  • pulmonary vein
  • hepatic vein
  • hepatic portal vein
  • renal vein
  View Solution

  ---

• 4.

  Which one of the following is an amphoteric oxide?

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

  ---

• 5.

  Plexiglass is a commercial name of

  • glyptal
  • polyacrylo nitrile
  • polymethyl methacrylate
  • polyethyl acrylate
  View Solution

  ---

• 6.

  In Entamoeba histolytica, the presence of chromatid bodies is characteristic of

  • precystic stage
  • mature quadrinucleate stage
  • trophozoite stage
  • mature binucleate stage
  View Solution