1
IIT-JEE 1993
Subjective
+2
-0
Chromium metal can be plated out from an acidic solution containing CrO3 according to the following equation
CrO3 (aq) + 6H+ (aq) + 6e- $$\to$$ Cr(s) + 3H2O
Calculate (i) how many grams of chromium will be plated out by 24,000 coulombs and (ii) how long will it take to plate out 1.5 g of chromium by using 12.5 amp current.
CrO3 (aq) + 6H+ (aq) + 6e- $$\to$$ Cr(s) + 3H2O
Calculate (i) how many grams of chromium will be plated out by 24,000 coulombs and (ii) how long will it take to plate out 1.5 g of chromium by using 12.5 amp current.
2
IIT-JEE 1993
Subjective
+4
-0
A first order reaction A $$\to$$ B, requires activation energy of 70 kJ mol-1. When 20% solution of A was kept at 25oC for 20 minutes, 25% decomposition tooks place. What will be the percentage decomposition in the same time in a 30% solution maintained at 40oC? Assume that activation energy remains constant in this range of temperature.
3
IIT-JEE 1993
Fill in the Blanks
+2
-0
If $$K = \sin \left( {\pi /18} \right)\sin \left( {5\pi /18} \right)\sin \left( {7\pi /18} \right),$$ then the numerical value of K is ______.
4
IIT-JEE 1993
Fill in the Blanks
+2
-0
If $$A > 0,B > 0\,$$ and $$A + B = \pi /3,$$ then the maximum value of tan A tan B is _______.
Paper analysis
Total Questions
Chemistry
20
Mathematics
29
Physics
2
More papers of JEE Advanced
JEE Advanced 2023 Paper 2 Online
JEE Advanced 2023 Paper 1 Online
JEE Advanced 2022 Paper 2 Online
JEE Advanced 2022 Paper 1 Online
JEE Advanced 2021 Paper 2 Online
JEE Advanced 2021 Paper 1 Online
JEE Advanced 2020 Paper 2 Offline
JEE Advanced 2020 Paper 1 Offline
JEE Advanced 2019 Paper 2 Offline
JEE Advanced 2019 Paper 1 Offline
JEE Advanced 2018 Paper 2 Offline
JEE Advanced 2018 Paper 1 Offline
JEE Advanced 2017 Paper 2 Offline
JEE Advanced 2017 Paper 1 Offline
JEE Advanced 2016 Paper 2 Offline
JEE Advanced 2016 Paper 1 Offline
JEE Advanced 2015 Paper 2 Offline
JEE Advanced 2015 Paper 1 Offline
JEE Advanced 2014 Paper 2 Offline
JEE Advanced 2014 Paper 1 Offline
JEE Advanced 2013 Paper 2 Offline
JEE Advanced 2013 Paper 1 Offline
IIT-JEE 2012 Paper 2 Offline
IIT-JEE 2012 Paper 1 Offline
IIT-JEE 2011 Paper 1 Offline
IIT-JEE 2011 Paper 2 Offline
IIT-JEE 2010 Paper 1 Offline
IIT-JEE 2010 Paper 2 Offline
IIT-JEE 2009 Paper 2 Offline
IIT-JEE 2009 Paper 1 Offline
IIT-JEE 2008 Paper 2 Offline
IIT-JEE 2008 Paper 1 Offline
IIT-JEE 2007
IIT-JEE 2007 Paper 2 Offline
IIT-JEE 2006 Screening
IIT-JEE 2006
IIT-JEE 2005 Screening
IIT-JEE 2005
IIT-JEE 2004 Screening
IIT-JEE 2004
IIT-JEE 2003
IIT-JEE 2003 Screening
IIT-JEE 2002 Screening
IIT-JEE 2002
IIT-JEE 2001
IIT-JEE 2001 Screening
IIT-JEE 2000
IIT-JEE 2000 Screening
IIT-JEE 1999
IIT-JEE 1999 Screening
IIT-JEE 1998
IIT-JEE 1998 Screening
IIT-JEE 1997
IIT-JEE 1996
IIT-JEE 1995
IIT-JEE 1995 Screening
IIT-JEE 1994
IIT-JEE 1993
IIT-JEE 1992
IIT-JEE 1991
IIT-JEE 1990
IIT-JEE 1989
IIT-JEE 1988
IIT-JEE 1987
IIT-JEE 1986
IIT-JEE 1985
IIT-JEE 1984
IIT-JEE 1983
IIT-JEE 1982
IIT-JEE 1981
IIT-JEE 1980
IIT-JEE 1979
IIT-JEE 1978
JEE Advanced
Papers
2020
2019
1997
1996
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978