What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B] ?
A. Zero
B. One
C. Two
D. Three
Submitted by :- Jamil Ahmed
CHEMISTRY
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The number of molecules taking part in the rate determining step is called___________________?
A. Order of reaction
B. Rate of reaction
C. Mole of a reaction
D. Extent of a reaction
Submitted by :- Jamil Ahmed
Which of the following is the purest form of iron?
- Steel
- Wrought iron
- Pig iron
- Cast iron
Submitted by :- Muhammad Nawaz
Ethyl chloride with nascent hydrogen produces_________________?
A. methane
B. ethane
C. propane
D. butane
Submitted by :- Jamil Ahmed
Which C-X bond has the highest bond energy per mole ?
A. C-F
B. C-C
C. C-Br
D. C-I
Submitted by :- Jamil Ahmed
Which of the following process is used to get pure Al (99.99%)?
[A] Hall’s process
[B] Serpek’s process
[C] Hopp’s process
[D] Bayer’s processSubmitted by :- Muhammad Nawaz
Vinylacetylene combines with HCI to form___________________?
Raney nickel is prepared from ______________________ by treating with caustic soda?
A. Ni-Cu alloy
B. Ni-Al alloy
C. Ni-Fe alloy
D. Ni-Mg alloy
Submitted by :- Jamil Ahmed
Which element is a refractory substance?
- Cr
- Fe
- Al
- Ni
Submitted by :- Muhammad Nawaz
What is the formula of Cryolite?
- NaзAIF4
- Na3AIF6
- Na3AIF3
- Na3AIF5
Submitted by :- Muhammad Nawaz