mnsoomro
In ___________ pre-ignition of the fuel is seen
(A). petrol knocking
(B). petrol cracking
(C). diesel cracking
(D). diesel knocking
Submitted by :- Muhammad Nawaz
Which one of the following compounds does not have – OH group___________________?
A. ethylene glycol
B. glycerol
C. picric acid
D. ethyl acetate
Submitted by :- Jamil Ahmed
Select the example of the electrolytes?
(A). Acids
(B). Metals
(C). Alloys
(D). Oxides
Submitted by :- Muhammad Nawaz
On dilution the specific conductance of the electrolyte __________
(A). Increases
(B). Decrease
(C). Slightly increases
(D). Cannot be determined
Submitted by :- Muhammad Nawaz
When alcohol reacts with phosphorous halides it give____________________?
The resistance of the conductor __________ in the electrolytic cell with an increase in temperature.
(A). Increase
(B). Decrease
(C). Slightly increase
(D). Do no change
Submitted by :- Muhammad Nawaz
An alcohol which can be prepared by fermentation is_________________?
A. CH3OH
B. C3H7OH
C. CH3 – CH2 – OH
D. C6H5OH
Submitted by :- Jamil Ahmed
A head telephone ear piece is used instead of _________ to detect the flow of current.
(A). Ammeter
(B). Galvanometer
(C). Multimeter
(D). Voltmeter
Submitted by :- Muhammad Nawaz
Methyl alcohol is not used__________________?
A. As a solvent
B. As a substitute for petrol
C. As an antifreezing agent
D. For denaturing of ethyl alcohol
Submitted by :- Jamil Ahmed