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Chemistry - Mixed Test

GATE Chemistry - Inorganic and Coordination Chemistry

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Baryta water is ________.

  1. Ba(OH)2
  2. Mg(OH)2
  3. CaH2
  4. Ca(OH)2
  5. None of these
Question 2 Multiple Choice (Single Answer)

By which of the following process purification of Al is done?

  1. Hoop’s process
  2. Wet process
  3. Van-Arkel process
  4. Mond process
  5. None of these
Question 3 Multiple Choice (Single Answer)

When plaster of paris is heated at 200oC it is converted in to anhydrous calcium. This is known as ___________.

  1. dead burnt
  2. slaked lime
  3. slaked lime
  4. quick lime
  5. none of these
Question 4 Multiple Choice (Single Answer)

Which of the following compound has 4.9 BM magnetic moment?

  1. Hg[Co(CNS)4]+
  2. [Fe(diph)3]+++
  3. K3[Cr(CNS)6]
  4. [MnBr4]2-
  5. None of these
Question 5 Multiple Choice (Single Answer)

The composition of electron alloy is ________.

  1. Cu and Zn
  2. Cu and Sn
  3. Pb and Sn
  4. Mg and Zn
  5. None of these
Question 6 Multiple Choice (Single Answer)

Bone ash belongs to _________.

  1. Calcium phosphate
  2. Potassium ammonium hydrogen phosphate
  3. Calcium ammonium nitrate
  4. 2 and 3 correct
  5. None of these
Question 7 Multiple Choice (Single Answer)

The complexes [Co(NH3)4H2OCl]Br2 and [Co(NH3)4Br2]Cl.H2O are example of

  1. Ionization isomerism
  2. Linkage isomerism
  3. Geometrical isomerism
  4. Optical isomerism
  5. None of these
Question 8 Multiple Choice (Single Answer)

The magnetic moment of an octahedral Co(II) complex is 4.0 BM. The electronic configuration of the central metal ions is

  1. 5t2g, 2eg
  2. 6t2g , 1eg
  3. 3t2g, 4eg
  4. 4t2g, -3eg
  5. None of these
Question 9 Multiple Choice (Single Answer)

When the P4O6 reacts with hot water, which salts are formed?

  1. H3PO3
  2. H3PO4 and PH3
  3. HPO3
  4. POCl3 and PO2Cl
  5. None of these
Question 10 Multiple Choice (Single Answer)

The complexes [Co(1, 2 diamminopropane)Cl2]+ and [Co(1, 3 diamminopropane)Cl2]+ represent ____________.

  1. ligand isomers
  2. linkage isomers
  3. ionization isomers
  4. coordination isomers
  5. none of these
Question 11 Multiple Choice (Single Answer)

The reaction [Co(NH3)5Cl]+++ -OH giving [Co(OH)(NH3)5]++ follows a mechanistic pathway which is ___________.

  1. SN1
  2. SN2
  3. SN1CB
  4. SE2
  5. None of these
Question 12 Multiple Choice (Single Answer)

Arrange in the increasing order of acidic strength of oxyacid of nitrogen: (A) hyponitrous acid (B) nitrous acid (C) nitric acid (D) pernitric acid

  1. D < C < B < A
  2. C < D < B < A
  3. A < B < C < D
  4. B < A < C < D
  5. None of these
Question 13 Multiple Choice (Single Answer)

The pair of ion that forms complex with coordination number 2 is

  1. Cd(II) and Hg(II)
  2. Cu(II) and Hg(II)
  3. Cd(II) and Hg(I)
  4. Cu(I) and Hg(II)
  5. None of these
Question 14 Multiple Choice (Single Answer)

Regarding the two complexes - (A) - [Ni(H2O)6]++ and (B) - [Ni(NH3)6]++, which of the following statement is correct?

  1. Complex (A) is diamagnetic and complex (B) is paramagnetic
  2. Complex (A) is paramagnetic and (B) is diamagnetic.
  3. Both paramagnetic
  4. Both are diamagnetic
  5. None of these
Question 15 Multiple Choice (Single Answer)

For [Ti(H2O)6]3+ maximum absorption is due to d-d transition found at 20000 cm-1. Calculate the crystal field stabilization energy for the complex ions.

  1. - 20000 cm-1
  2. 4/9 x 20000 cm-1
  3. 8000 cm-1
  4. - 8000 cm-1
  5. None of these
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