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Recent questions tagged q53
Questions
The value of equilibrium constant of the reaction $ HI (g) \rightleftharpoons \large\frac{1}{2} H_2(g) + \large\frac{1}{2} I_2$ is 8.0. The equilibrium constant of the reaction $H_2(g) +I_2(g) \rightleftharpoons 2HI(g) $ will be :
aipmt
modelpaper
chemistry
2008
q53
asked
Dec 16, 2013
by
thanvigandhi_1
0
answers
The hormone used for suppressing allergies, rheumatoid arthritis and tissue inflammation is :
jeemain
eamcet
biology
2002
q53
asked
Dec 9, 2013
by
thanvigandhi_1
1
answer
Endostyle is present in
jeemain
eamcet
biology
2001
q53
asked
Dec 2, 2013
by
thanvigandhi_1
1
answer
Graphite's lubricant nature in moon
jeemain
chemistry
unit15
p-block-elements
q53
medium
asked
Nov 28, 2013
by
sreemathi.v
1
answer
At a certain temperature, dissociation constant of formic acid and acetic acid are $1.8 \times 10^{-4}$ and $1.8 \times 10^{-5}$ respectively. At what concentration of acetic solution, the $H_3O^+$ ion concentration is same as that in 0.001 M fromic acid solution
jeemain
aipmt
chemistry
equilibrium
medium
q53
biology
asked
Nov 27, 2013
by
mosymeow_1
1
answer
The number of valves in the gut of cockroach is :
jeemain
eamcet
biology
2000
q53
asked
Nov 26, 2013
by
thanvigandhi_1
0
answers
If $\overrightarrow a=2\hat i+\hat j-2\hat k\:\:and\:\:\overrightarrow b=\hat i+\hat j.$ and $\overrightarrow c$ is a vector such that $\overrightarrow a.\overrightarrow c=|\overrightarrow c|,\:\:|\overrightarrow c-\overrightarrow a|=2\sqrt 2 $ and angle between $\overrightarrow a\times\overrightarrow b\:\:and\:\:\overrightarrow c$ is $\large\frac{\pi}{6}$, then $|(\overrightarrow a\times\overrightarrow b)\times\overrightarrow c|=?$
jeemain
math
class12
ch10
vector-algebra
medium
vector-product
q53
asked
Nov 20, 2013
by
rvidyagovindarajan_1
1
answer
The solution of the equation $4\sin^4x+\cos^4x=1$ is
jeemain
math
class11
ch3
trigonometric-functions
q53
trignometric-equations
medium
asked
Nov 18, 2013
by
sreemathi.v
1
answer
The cells, present in the fat bodies of cockroach, which contains symbiotic bacteria that synthesize amino acids are :
jeemain
eamcet
biology
2010
q53
asked
Nov 13, 2013
by
thanvigandhi_1
0
answers
The equation of the circle whose diameter is the common chord of the circles $x^2+y^2+2x+3y+2=0$ and $x^2+y^2+2x-3y-4=0$ is :
jeemain
eamcet
math
2005
q53
asked
Nov 12, 2013
by
meena.p
1
answer
Observe the following statements: I. The circle $x^2+y^2-6x-4y-7=0$ touches x-axis. II. The circle $x^2+y^2+6x+4y-7=0$ touches x-axis.Which of the following is a correct statement?
jeemain
eamcet
math
2006
q53
asked
Nov 6, 2013
by
meena.p
1
answer
On repeated sparking 10ml of mixture of carbon monoxide and nitrogen required 7ml of oxygen for combustion of CO and $N_2$ to $CO_2$ and NO.The volume of nitrogen in mixture is (all volumes are measured under identical conditions).
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
mole-concept-and-molar-masses
q53
medium
asked
Oct 28, 2013
by
sreemathi.v
1
answer
The equation of the circle of radius 3 that lies in the fourth quadrant and touching the lines x=0 and y=0 is
jeemain
eamcet
math
2007
q53
asked
Oct 25, 2013
by
meena.p
1
answer
Which one of the parasites is responsible for causing gigantism in its intermediate host?
jeemain
eamcet
biology
2012
q53
asked
Oct 17, 2013
by
thanvigandhi_1
1
answer
If the lines $2x-3y=5$ and $3x-4y=7$ are two diameters of a circle of radius 7, then the equation of the circle is
jeemain
eamcet
math
2008
q53
asked
Oct 17, 2013
by
meena.p
1
answer
The equation of the circle which passes through the origin and cuts orthogonally each of the circles $x^2+y^2-6x+8=0$ and $x^2+y^2-2x-2y=7$ is :
jeemain
eamcet
math
2009
q53
asked
Oct 10, 2013
by
meena.p
1
answer
If $f(\theta)=(\sin\theta+cosec\theta)^2+(\cos\theta+\sec\theta)^2$ then minimum value of $f(\theta)$ is
jeemain
math
class11
ch3
trigonometric-functions
q53
trignometric-identities
easy
asked
Oct 9, 2013
by
sreemathi.v
1
answer
Craspedote medusa is present in the following pair
jeemain
eamcet
biology
2013
q53
asked
Oct 5, 2013
by
thanvigandhi_1
1
answer
The length of the common chord of the circles of radii 15 and 20 whose centers are 25 units of distance apart, is :
jeemain
eamcet
math
2010
q53
asked
Sep 27, 2013
by
meena.p
1
answer
If $|\bar {a}|=1$,$ |\bar {b}|=2$ and the angle between $\bar {a} $ and $\bar {b}$ is $120^{\circ},$ then $\{(\bar {a}+ 3 \bar {b}) \times (3 \bar {a}-\bar {b})\}^2=$
jeemain
eamcet
math
2011
q53
asked
Sep 23, 2013
by
meena.p
1
answer
If the circle $x^2+y^2+4x-6y+c=0$ bisects the circumference of the circle $x^2+y^2-6x+4y-12=0,$ then $c=$
jeemain
eamcet
math
2013
q53
asked
Sep 16, 2013
by
meena.p
1
answer
If the distance between Earth and the sun were half its present value, the number of days in a year would be
jeemain
physics
class11
unit6
gravitation
q53
easy
asked
Aug 22, 2013
by
meena.p
1
answer
System shown in figure is released from rest. Pulley and spring is massless and friction is absent everywhere. The speed of 5kg block when 2 kg block leaves the contact with the ground is $(k=40 N/m;g=10 m/s^2)$
jeemain
physics
class11
unit4
work-power-energy
q53
difficult
asked
Aug 5, 2013
by
meena.p
1
answer
A block is placed on a rough inclined plane of inclination $\theta=30 ^{\circ}$ . If the force to drag it along the plane is to be smaller than to lift it, the coefficient of friction $\mu$ should be less than
jeemain
physics
class11
unit3
laws-of-motion
q53
medium
mock
asked
Jul 11, 2013
by
meena.p
1
answer
The curve $a^{2}y^{2}=x^{2}(a^{2}-x^{2})$ has
tnstate
class12
bookproblem
p234
objective
q53
modelpaper
mar-2007
oct-2007
oct-2009
mar-2010
asked
May 21, 2013
by
poojasapani_1
1
answer
The following two lines are $ \large\frac{x-1}{2}=\frac{y-1}{-1}=\frac{z}{1}$ and $\large\frac{x-2}{3}=\frac{y-1}{-5}=\frac{z-1}{2}$ is
tnstate
class12
bookproblem
p270
objective
q53
modelpaper
jun-2006
mar-2010
asked
May 11, 2013
by
poojasapani_1
1
answer
Evaluate:\[\int \large 2^{2^{2^{x}}}2^{2^{x}}2^x dx\]
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q53
p27
math
asked
Feb 3, 2013
by
meena.p
0
answers
Given the sum of the perimeters of a square and a circle show that the sum of their areas is least when the side of the square is equal to the diameter of a circle.
cbse
class12
additionalproblem
kvquestionbank2012
ch6
q53
p19
math
asked
Jan 29, 2013
by
meena.p
0
answers
Integrating factor of the differential equation $\large\frac{dy}{dx}$$+y\tan x-\sec x=0$ is \begin{array}{1 1}(A)\;\cos x & (B)\;sec x\\(C)\;e^{\cos x} & (D)\;e^{\sec x} \end{array}
cbse
class12
ch9
sec-a
q53
p198
objective
exemplar
easy
math
asked
Jan 18, 2013
by
sreemathi.v
1
answer
If $\Large \int\frac{dx}{(x+2)(x^2+1)}=\normalsize a\log\mid 1+x^2\mid+b\tan^{-1}x+\frac{1}{5}\log\mid x+2\mid+C$,then\begin{array}{1 1}(A)\;a=\frac{-1}{10},b=\frac{-2}{5} & (B)\;a=\frac{1}{10},b=\frac{-2}{5}\\(C)\;a=\frac{-1}{10},b=\frac{2}{5} & (D)\;a=\frac{1}{10},b=\frac{2}{5}\end{array}
cbse
class12
ch7
q53
p168
objective
exemplar
sec-c
difficult
math
asked
Jan 15, 2013
by
sreemathi.v
1
answer
The smallest value of the polynomial $x^3-18x^2+96x$ in [0,9] is
cbse
class12
ch6
q53
p141
objective
exemplar
difficult
sec-c
math
asked
Jan 11, 2013
by
sreemathi.v
1
answer
Two cards are drawn successively without replacement from a well shuffled deck of cards.Find the mean and standard variation of the random variable X where X is the number of aces.
cbse
class12
ch13
q53
p278
exemplar
sec-b
medium
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
Differentiate $ tan^{-1}\bigg (\Large \frac{\sqrt {1+x^2}-1}{x}\bigg)\;\normalsize w.r.t\;\tan^{-1}x\;when\;x\neq 0$
cbse
class12
ch5
q53
p111
short-answer
exemplar
sec-b
medium
math
asked
Jan 1, 2013
by
sreemathi.v
1
answer
True or False: $\begin{vmatrix}x+1 & x+2 & x+a\\x+2 & x+3 & x+b\\x+3 & x+4 & x+c\end{vmatrix}=0,$where a,b,c are in A.P.
cbse
class12
ch4
sec-a
q53
p84
true-or-false
exemplar
easy
math
asked
Dec 28, 2012
by
sreemathi.v
1
answer
The matrix $P=\begin{bmatrix}0 & 0 & 4\\0 & 4 & 0\\4 & 0 & 0\end{bmatrix}$ is a
cbse
class12
ch3
q53
p59
objective
exemplar
sec-a
easy
math
asked
Dec 23, 2012
by
sreemathi.v
1
answer
True or False:The graph of inverse trigonometric function can be obtained from the graph of their corresponding trigonometric function by interchanging x and y axes.
cbse
class12
ch2
q53
p40
true-or-false
exemplar
concepts
toolbox
sec-a
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
True or False: Let R={(3,1),(1,3),(3,3)} be a relation defined on the set A={1,2,3}.Then R is symmetric,transitive but not reflexive.
cbse
class12
ch1
q53
p17
true-or-false
exemplar
math
sec-a
asked
Dec 20, 2012
by
sreemathi.v
1
answer
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