This practice AIEEE chemistry questions will help in preparing for the actual AIEEE Chemistry section.
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For reaction , 80% A is decomposed in 1 hr. 96% is decomposed in 2 hrs. 99.2% is decomposed in 3 hrs. and 99.84% is decomposed in 4 hrs. What is the order of reaction?
first
second
zero
can not be predicted
decreased
at first increases then it decreases
remains unchanged
increased
For the reaction the rate expression is, , rate constant is . Relation between the initial concentration of the reactants are . The rate of reaction after 25%C is converted into products is
0
none of these
The value of Van Der Waal’s constant a for the gases and are 1.36, 1.39, 4.17 and 2.253 unit respectively. The gas which can be liquefied most easily is
2 mol and 3 mol gas are allowed to react in a 20 L flask at 400 K and after complete conversion of into was added and temperature reduced to 300 K. Pressure of the gas after reaction is
3R x 300/10
3R x 300/20
R x 300/10
R x 300/20
A G.M. counter is used to study the radio-active process. In the absence of radio-active substance A it counts 3 disintegration per second (dps). At the start in the presence of A it records 23 dps; and after 10 minutes 13 dps. (1). What does it count after 20 minutes? (2). What is half-life of A?
8 dps, 10 min
5 dps, 20 min
5 dps, 10 min
5 dps, 5 min
When mole of the chloride of an element Y was completely hydrolyzed, it was found that the resulting solution requires 20 ml of 0.1 M aqueous silver nitrate for complete precipitation of chloride ion. Element Y could be
sulphur
aluminium
silicon
phosphorus
If the ratio of co-ordination no. P to that of Q be Y : Z, then the formula of the solid is
none
Allylic bromination of propane by NBS to form allyl bromide is a
free radical substitution reaction
nucleophilic addition reaction
electrophilic addition reaction
free radical addition reaction
In the equation for expansion of work against atmosphere w = – P D V, which one (S) does P represent
all of the above
pressure of the surroundings
some constant pressure
pressure of the system
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