General Principles and Processes of Isolation of Elements  MCQs

MCQs of General Principles and Processes of Isolation of Elements

Showing 11 to 20 out of 154 Questions
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11.
What is the angle between two odjoining d2sp3 hybid orbitals ?
(a) 90º
(b) 109º28'
(c) 120º
(d) 180º
Answer:

Option (a)

12.
What is the unit of magnetic moment ?
(a) BM
(b) A
(c) Cd
(d) S
Answer:

Option (a)

13.
By which hybrid octahedral structure is found ?
(a) sp3
(b) dsp2
(c) sp3d2
(d) sp3d
Answer:

Option (c)

14.
What is the name of NH2- ligand complex ?
(a) Amino
(b) Amido
(c) Amine
(d) Amedo
Answer:

Option (b)

15.
What is the IUPAC name of NH3 ligand
(a) Ammine
(b) Amine
(c) Aqua
(d) Ammonia
Answer:

Option (a)

16.
What is the proper IUPAC name of [Cr(CO)6] ?
(a) Hexa carbonyl chromium (0)
(b) Hexa carbonyl chromate (0)
(c) Hexa carbonyl chromium (vi)
(d) Hexa carbonyl chromate (vi)
Answer:

Option (a)

17.
What is the word used for undesirable substances present in the ore ?
(a) Mineral
(b) Gangue
(c) Ore
(d) Slag
Answer:

Option (b)

18.
Which of the following is not an ore of Al ?
(a) Anglesite
(b) Mica
(c) Beryl
(d) Orthoclase
Answer:

Option (a)

19.
Which ore is a kind of china clay ?
(a) Corundum
(b) Sphalerite
(c) Cryolite
(d) Kaolinite
Answer:

Option (d)

20.
What is the formula of copper ore malachite ?
(a) Cu2O
(b) Cu2S
(c) CuCO3 . Cu(OH)2
(d) CuFeS2
Answer:

Option (c)

Showing 11 to 20 out of 154 Questions
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