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mnsoomro
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______layered structure is the structure of graphite.
(A). Three dimensional structure (B). Pyramidal (C). Planar (D). Bipyramidal (E). None of these Submitted by :- Muhammad Nawaz
Ethanol and methanol can be distinguished by a__________________?
A. Iodoform test B. Lucas test C. Benedicts test D. Tollens test Submitted by :- Jamil Ahmed
The hydrogenation of phenol in the presence of Ni and heat gives_________________?
A. cyclohexane B. n – hexane C. 1 – hexanol D. cyclohexanol Submitted by :- Jamil Ahmed
The yield of petrol is _______in liquid phase thermal cracking.
(A). 50%-60% (B). 60%-70% (C). 70%-80% (D). 80%-90% (E). None of these Submitted by :- Muhammad Nawaz
Phenol was isolated by Runge from________________?
A. vegetable oil B. coal tar C. wood D. none of these Submitted by :- Jamil Ahmed
Absolute alcohol is obtained when rectified spirit is treated with__________________?
A. Ca(OH)2 B. CaCO3 C. CaCl2 D. CaO Submitted by :- Jamil Ahmed
Rating of _____is called Octane number.
(A). petrol knocking (B). diesel knocking (C). petrol cracking (D). diesel cracking Submitted by :- Muhammad Nawaz
Methanol can be obtained from_________________?
A. water gas B. destructive distillation of wood C. methane D. all Submitted by :- Jamil Ahmed
What catalyst is used in the catalytic cracking?
(A). Nacl (B). Kcl (C). ZnSO4 (D). Al2O3 Submitted by :- Muhammad Nawaz
In _________gasoline vapours are purified.
(A). thermal cracking (B). catalytic cracking (C). stabilization (D). knocking Submitted by :- Muhammad Nawaz