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Chemistry

Description: UGC NET GATE
Number of Questions: 15
Created by:
Tags: UGC NET GATE s.p. and d Block Elements GATE B, Al, Si, N, P, and S Coordination Complexes
Attempted 0/15 Correct 0 Score 0

Which of the following ores contains only lead?

  1. Galena

  2. Bauxite

  3. Willemite

  4. Carnallite

  5. None of these


Correct Option: A
Explanation:

This option is correct.

The extraction and purification of nickel is done by

  1. Mond’s process

  2. Parker’s and Pattinson’s process

  3. Carter's process

  4. Haber’s process

  5. None of these


Correct Option: A
Explanation:

This option is correct.

The term 'Cinnabar' is related to

  1. HgS

  2. AlF3.3NaF

  3. ZnS

  4. PbS

  5. None of these


Correct Option: A
Explanation:

This option is correct.

The term 'Plumbosolvency' is related to

  1. action of water

  2. action of air

  3. action of acids

  4. action of alkalis

  5. Both (2) and (3)


Correct Option: A
Explanation:

Solvent action of water is called plumbosolvency.

Which of the following gases is produced when calcium carbide reacts with water?

  1. Methane

  2. Methyl acetylene

  3. Phosgene

  4. Acetylene

  5. None of these


Correct Option: D
Explanation:

This option is correct.

When carbon monoxide and chlorine gas react in the presence of sunlight, ______________ is produced.

  1. carbon dioxide

  2. hydrogen

  3. nitrogen

  4. phosgene

  5. None of these


Correct Option: D
Explanation:

This option is correct.

How many optical isomers are possible in [Pt(py)(NH3)(F)(Cl)(Br)(I)] complex?

  1. 15

  2. 30

  3. 10

  4. 5

  5. None of these


Correct Option: B
Explanation:

This option is correct.

Which of the following processes involves purification of metal and converting the metal into a volatile stable compound?

  1. Wet process

  2. Van-Arkel process

  3. Serpeck's process

  4. Carter's process

  5. None of these


Correct Option: B
Explanation:

This option is correct.

Which of the following complexes represents enantiomers?

  1. [Pt(py)(NH3)(NO2)(Cl)(Br)(I)]

  2. [Ir(C2O4)2Cl2]2-

  3. Trans-[Co(en)2Cl2]+

  4. [Ni(CO)4]

  5. None of these


Correct Option: A
Explanation:

This option is correct.

Silicon carbides are also called

  1. salt-like carbides

  2. metallic carbides

  3. carborundum

  4. refractory carbides

  5. Both (1) and (2)


Correct Option: C
Explanation:

This option is correct. Silicon carbide (SiC), also known as carborundum, is a compound of silicon and carbon with chemical formula SiC.

What is the mixture of O2 and (5-10)% CO2 called?

  1. Carbogen

  2. Solvay process

  3. Carborundum

  4. Haber’s process

  5. Both (2) and (3)


Correct Option: A
Explanation:

This option is correct.

The complex [PtCl(NCS)(NH3)2] is a

  1. ionisation isomer

  2. linkage isomer

  3. coordination isomer

  4. hydrated isomer

  5. None of these


Correct Option: B
Explanation:

This option is correct.

Which of the following pairs of complex ions exhibits diamagnetic character?

  1. [Ni(CN)4]2-, [Ni(Cl)4]2-

  2. [MnCl4]2-, [Ni(CO)4]

  3. [CuCl4]2-, [Cu(NH3)4]2+

  4. [Ni(CN)4]2-, [Ni(CO)4]

  5. None of these


Correct Option: D
Explanation:

This option is correct.

_______ colour is produced by trans-[Pt(NH3)2Cl2] complex.

  1. Blue

  2. Yellow

  3. Orange

  4. Red

  5. None of these


Correct Option: B
Explanation:

This option is correct.

Al4C3 reacts with water to form

  1. Al(OH)3+C2H6

  2. Al2O3+C2H6

  3. Al(OH)3+CH4

  4. Al2O3+CH4

  5. None of these


Correct Option: C
Explanation:

 Al4C3  reacts with H2O to form aluminum hydroxide and methane.

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