which of the following are chemical changes?
| A) A & B | B) A, B & C |
| C) C & D | D) All the above |
Submitted by :- Muhammad Nawaz
mnsoomro
The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?
A. Distillation
B. Extraction
C. Gas chromatography
D. Column chromatography
Submitted by :- Jamil Ahmed
The number of lone pairs in XeOF4 is_________?
A. 0
B. 1
C. 2
D. 3
Submitted by :- Jamil Ahmed
Which of the following is a non metal that remains liquid at room temperature ?
What is the Iupac name for the compound shown below.
| A) 1-Bromo-3-chlorocyclohexene | B) 2-Bromo-6-chlorocyclohex-1-ene |
| C) 6-Bromo-2-chlorocyclohexene | D) 3-Bromo-1-chlorocyclohex-1-ene |
Submitted by :- Muhammad Nawaz
The O-O linkage is present in__________?
A. H2S2O3
B.H2SO8
C. H2S4O6
D. H2 S2 O6
Submitted by :- Jamil Ahmed
Silver Mirror test is given by which one of the following compounds?
| A) Only 1 | B) Only 2 |
| C) 1 and 3 | D) 2 and 4 |
Submitted by :- Muhammad Nawaz
SI unit of equivalent conductance
| A) ohm/cm | B) Siemens m2/equivalent |
| C) Siemens/equivalent | D) mho/cm |
Submitted by :- Muhammad Nawaz
Hydrogen bomb is based on the principle of
| A) nuclear fission | B) nuclear fusion |
| C) natural radioactivity | D) artificial radioactivity |
Submitted by :- Muhammad Nawaz
The average human body contains about _______ gram of Sodium Chloride.
(A) 190
(B) 210
(C) 230
(D) 250
Submitted by :- Muhammad Nawaz