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Champ Jee
Subject: Chemistry
, asked on 22/9/18
Q20.
Ans: option c.
The answer which yoy gave previously was incorrect.
Pleqse give proper soln.
Answer
1
Champ Jee
Subject: Chemistry
, asked on 21/9/18
Q3.
Help asap. Pls.
Answer
1
Champ Jee
Subject: Chemistry
, asked on 14/9/18
Q8.
Ans: ABCD.
Please explain only about option A in detail.
Answer
1
Champ Jee
Subject: Chemistry
, asked on 14/9/18
Q38
Please solve this asap.
I m getting the ans as 750m/s again and again.
Answer
1
Champ Jee
Subject: Chemistry
, asked on 13/9/18
Q9. Part (b)
Ans: T=611K
Answer
1
Champ Jee
Subject: Chemistry
, asked on 11/9/18
(D). Expert can you show most probable speed for this?
Does it come as 1100?
Answer
1
Champ Jee
Subject: Chemistry
, asked on 14/8/18
Q17.
Help asap.
Answer
1
Raj Kothari
Subject: Chemistry
, asked on 22/5/18
Please solve 7th mcq
Q7. In a reaction 2HI
→
H
2
+ I
2,
the concentration of HI decrease from 0.5 ml L
–1
to 0.4 mol L
–1
in 10 minutes. What is the rate of reaction during this interval?
(a) 5 × 10
–3
M min
–1
(b) 2.5 × 10
–3
M min
–1
(c) 5 × 10
–2
M min
–1
(d) 2.5 × 10
–2
M min
–1
Answer
1
Shubham Gupta
Subject: Chemistry
, asked on 10/4/18
Q12. For the first order reaction A
→
B+C, carried out at 27
°
C if 3.8 x 10
-16
% of the reactant molecules exist in the activated state, the E
a
( activation energy ) of the reaction is
(a) 12 kJ/mole (b) 831.4 kJ/mole (c) 100 kJ/mole (d) 88.57 kJ/mole
Answer
2
Shubham Gupta
Subject: Chemistry
, asked on 10/4/18
Solve this:
11.
A first order reaction is 50% completed in 20 minutes at 27
°
C and in 5 min at 47
°
C. The energy activation of the reaction is
(A) 43.85 kJ/mol (B) 55.14 kJ/mol (C) 11.97 kJ/mol (D) 6.65 kJ/mol
Answer
1
Shubham Gupta
Subject: Chemistry
, asked on 10/4/18
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Answer
1
Shubham Gupta
Subject: Chemistry
, asked on 10/4/18
Solve this:
Answer
1
Shubham Gupta
Subject: Chemistry
, asked on 10/4/18
Rate of reaction; A + B Products; is given below as a function of different initial concentrations of A and B
[A] mol litre
-1
[B] mol litre
-1
Initial rate mol litre
-1
time
-1
0.01
0.01
0.005
0.02
0.01
0.010
0.01
0.02
0.005
The half life of A in the reaction is:
(A) 1.386 min
(B) 1.386 min
(C) 0.01 min
(D) 0.01 min
Answer
1
Surabhi Likhare
Subject: Chemistry
, asked on 6/2/18
How is the clear solution of FeCl
3
obtained?
Answer
2
Surabhi Likhare
Subject: Chemistry
, asked on 6/2/18
why FeCl
3
solution becomes turbid?
Answer
1
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What are you looking for?
Ans: option c.
The answer which yoy gave previously was incorrect.
Pleqse give proper soln.
Help asap. Pls.
Ans: ABCD.
Please explain only about option A in detail.
Please solve this asap.
I m getting the ans as 750m/s again and again.
Ans: T=611K
Does it come as 1100?
Help asap.
Q7. In a reaction 2HI H2 + I2, the concentration of HI decrease from 0.5 ml L–1 to 0.4 mol L–1 in 10 minutes. What is the rate of reaction during this interval?
(a) 5 × 10–3 M min–1 (b) 2.5 × 10–3 M min–1
(c) 5 × 10–2 M min–1 (d) 2.5 × 10–2 M min–1
(a) 12 kJ/mole (b) 831.4 kJ/mole (c) 100 kJ/mole (d) 88.57 kJ/mole
11. A first order reaction is 50% completed in 20 minutes at 27C and in 5 min at 47C. The energy activation of the reaction is
(A) 43.85 kJ/mol (B) 55.14 kJ/mol (C) 11.97 kJ/mol (D) 6.65 kJ/mol
The half life of A in the reaction is:
(A) 1.386 min
(B) 1.386 min
(C) 0.01 min
(D) 0.01 min