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Mixed Test (Chemistry)

GATE Chemistry: Coordination Compounds, Organometallics, Alkaline Earth Metals, Polymers, P-Block Elements, and General Bonding Concepts

20 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is a pair of square planar complexes?

  1. [PtCl4]2- and [ZnCl4]2-
  2. [Ni(CN)4]2- and [CoCl4]2-
  3. [ZnCl4]2- and [Ni(CN)4]2-
  4. [CoCl4]2- and [PtCl4]2-
  5. [PtCl4]2- and [Ni(CN)4]2-
Question 2 Multiple Choice (Single Answer)

Which of the following statements are correct?

P. BeCl2 has bridged structure in vapour phase.
Q. Beryllium exhibits coordination number of six.
R. BeO is basic in nature.
S. Be(OH)2 is amphoteric in nature.

  1. P and Q
  2. P and S
  3. Q and R
  4. Q and S
  5. R and S
Question 3 Multiple Choice (Single Answer)

Which of the following statements are false?
P. Halogens are good conductors of heat and electricity.
Q. All hydrogen halides are colourless gases.
R. Pentahalides are more covalent than trihalides.
S. ICl more reactive than I2.

  1. P and Q
  2. P and R
  3. P and S
  4. Q and R
  5. R and S
Question 4 Multiple Choice (Single Answer)

Among the following complexes, the largest crystal field splitting occurs in

  1. [CrCl6]3-
  2. [Cr(H2O)6]3+
  3. [Cr(NH3)6]3+
  4. [Cr(CN)6]3-
  5. [Cr(en)3]3+
Question 5 Multiple Choice (Single Answer)

Which of the following is a pair of amorphous polymers?

  1. Polyvinyl alcohol and Polyvinyl butyral
  2. Polyethylene and Neoprene
  3. Neoprene and Terylene
  4. Polymethyl methacrylate and Polyvinyl butyral
  5. Polyvinyl alcohol and Polymethyl methacrylate
Question 6 Multiple Choice (Single Answer)

Which of the following complexes is not correctly named?

  1. Na3[Ag(S2O3)2]: Sodium bis(thiosulphato)argentite(I)
  2. [Fe(C5H5)2]: Dicyclopentadienyliron(II)
  3. [Pt(py)4][PtCl4]: Tetrapyridineplatinum(II)tetrachloroplatinate
  4. Li[AlH4]: Lithium tetrahydridoaluminate(III)
  5. [Zn(NCS)]2+: Tetrathiocyanato-N-zinc(II) cation
Question 7 Multiple Choice (Single Answer)

Which of the following pairs represent isostructural species?
P. NF3, NO3-
Q. BF3, H3O+
R. NF3, H3O+
S. NO3-, BF3

  1. P and Q
  2. P and R
  3. P and S
  4. Q and R
  5. R and S
Question 8 Multiple Choice (Single Answer)

Which of the following species is/are diamagnetic in nature?

  1. H2
  2. H2+
  3. H2
  1. 1 only
  2. 2 only
  3. 3 only
  4. 1 and 2
  5. 2 and 3
Question 9 Multiple Choice (Single Answer)

Which of the following are isoelectronic species?

  1. CN-
  2. NO+
  3. O2+
  4. O2-
  5. F2
  1. 1 and 2
  2. 1 and 4
  3. 2, and 3
  4. 3 and 4
  5. 4 and 5
Question 10 Multiple Choice (Single Answer)

Which of the following statements are correct regarding the properties of ionic compounds?
P. Ionic compounds have high melting and boiling points.
Q. Ionic compounds in their molten state do not conduct electricity.
R. Ionic bonds are directional.
S. They are highly soluble in polar solvents.

  1. P and Q
  2. P and R
  3. Q and R
  4. Q and S
  5. R and S
Question 11 Multiple Choice (Single Answer)

Which of the following statements are true?
P. Bond angle in PH4+ is lower than that in PH3.
Q. H2O is a liquid and H2S a gas.
R. NH3 forms hydrogen bond but PH3 does not.
S. NH3 is a stronger reducing agent than BiH3.

  1. P and Q
  2. P and R
  3. Q and R
  4. Q and S
  5. R and S
Question 12 Multiple Choice (Single Answer)

Which of the following statements are true?
P. Hybridization of the central atoms in NH3 and H2O are sp3.
Q. CO2 has bent shape while SO2 is linear.
R. SF6 is octahedral and F–S–F bond angle is 90o.
S. BeCl2 has dipole moment.

  1. P and Q
  2. P and R
  3. P and S
  4. Q and R
  5. R and S
Question 13 Multiple Choice (Single Answer)

Which of the following pairs can form a dative covalent bond to each other?
P. NH3 and H+
Q. CH4 and AlCl3
R. NH3 and BF3
S. H2O and H+

  1. P and Q
  2. Q and R
  3. P, Q and R
  4. P, R and S
  5. Q, R and S
Question 14 Multiple Choice (Single Answer)

In which of the following molecules central atom has no lone pairs?

  1. IF7
  2. XeF6
  3. SF6
  4. ClF5
  5. PF5
  1. 1, 2 and 3
  2. 1, 3 and 5
  3. 2, 3 and 4
  4. 2, 4 and 5
  5. 3, 4 and 5
Question 15 Multiple Choice (Single Answer)

Which of the following pairs of species have the same bond order?

  1. O2--
  2. NO+
  3. CN-
  4. CO
  1. 1 and 2
  2. 1 and 4
  3. 1, 2 and 3
  4. 1, 3 and 4
  5. 2, 3 and 4
Question 16 Multiple Choice (Single Answer)

Match column - I (Trade name of polymer) with column – II (Monomer unit) and select the correct option.

 
Column – I Column – II
P. Plexiglass 1. Propenenitrile
Q. Delrin 2. Methanal
R. Orlon 3. Tetrafluoroethene
S. Teflon 4. Methyl methacrylate
  1. A - 4, B - 3, C - 2, D - 1
  2. A - 2, B - 1, C - 4, D - 3
  3. A - 4, B - 2, C - 1, D - 3
  4. A - 4, B - 1, C - 2, D - 3
  5. A - 1, B - 2, C - 3, D - 4
Question 17 Multiple Choice (Single Answer)

Which one of the following is the correct set with respect to molecule, hybridization and shape?

  1. XeF2, sp3d, bent
  2. NH3, sp2, pyramidal
  3. AlCl3, sp2, trigonal planar
  4. SF4, sp3, tetrahedral
  5. SO4--, sp3d, square planar
Question 18 Multiple Choice (Single Answer)

In which of the following ionization processes has the magnetic behavior changed?
P. C2 → C2+
Q. O2 → O2+
R. N2 → N2+
S. F2 → F2-

  1. P and Q
  2. P and R
  3. Q and R
  4. Q and S
  5. R and S
Question 19 Multiple Choice (Single Answer)

Assertion (A): 4f and 5f orbitals are equally shielded.
Reason (R): As a result of lanthanide contraction, the properties of 4d series of the transition elements have no similarities with the 5d series of elements.

In the following question there are two statements, Assertion (A) and Reason (R). Consider both the statements independently and mark your answer:
1. If A and R both are correct and R is correct explanation of A.
2. If A and R both are correct and R is not correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
Question 20 Multiple Choice (Single Answer)

Assertion (A): NH4+ and BF4- are isostructural.
Reason (R): Central atom in both NH4+ and BF4- are sp3 hybridized.

In the following question there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answer:
1. If A and R both are correct and R is correct explanation of A.
2. If A and R both are correct and R is not correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
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