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Recent questions tagged q37
Questions
The integral $\Large \int \limits_{\normalsize 0}^{\normalsize \pi} $$ \sqrt{1 + 4 \sin^2\large\frac{x}{2} \normalsize- \normalsize 4 \normalsize\sin \large\frac{x}{2}}$$\;dx$
jeemain
math
integral-calculus
jeemain-2014
q37
asked
Apr 6, 2014
by
balaji.thirumalai
0
answers
The acid showing salt like character in aqueous solute is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
medium
q37
asked
Mar 28, 2014
by
thanvigandhi_1
1
answer
In the elimination reaction given below the alkene formed is
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q37
medium
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Which method is based on distributive law?
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q37
medium
asked
Mar 17, 2014
by
meena.p
1
answer
2.5 mol of ideal gas at 2 atm and $27^{\circ}C$ expands isothermally to 2.5 times of its original volume against the external pressure of 1 atm. Calculate q
jeemain
physics
thermodynamics
cbse
class11
class12
q37
medium
asked
Mar 16, 2014
by
thanvigandhi_1
1
answer
According to molecular orbital theory ,the magnetic characteristics of $F_2^{2+}$ and $Br_2^{2+}$ respectively are
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q37
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following is a copolymer?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q37
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
According MO theory,which of the following species has the shortest bond length?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q37
medium
asked
Mar 6, 2014
by
sreemathi.v
1
answer
Which of the following group shows pseudo inert gas configuration
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)theory
q37
easy
asked
Mar 5, 2014
by
sreemathi.v
1
answer
In Hofmann degradation of amide Me the important step is the migration of
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q37
medium
asked
Mar 3, 2014
by
sreemathi.v
1
answer
The correct stability order of te following resonance structures is $ I:H_2C= N^+=\bar{N} ; \quad II:H_2C^+ - N=\bar{N} \quad ; III:H_2C - N^+=\bar{N} \quad ; IV:H_2 \bar{C}- N=N^+$
jeemain
chemistry
class11
organic-chemistry
q37
difficult
basic-organic-chemistry
ch12
asked
Feb 22, 2014
by
meena.p
1
answer
In the following reaction what is X?
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q37
medium
asked
Feb 20, 2014
by
sreemathi.v
1
answer
7g of a gas occupies a volume of 4:1 litre at 300K. If mol weight of gas is 42 , then find the pressure of it.
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
ideal-gas-equation
easy
q37
asked
Feb 15, 2014
by
sharmaaparna1
1
answer
e(ecentricity)=__________ for parabola.
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q37
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
General solution of equations : $\large\frac{dy}{dx}$$+py=0$
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q37
easy
asked
Feb 4, 2014
by
meena.p
1
answer
If $r_{xy}$ between two variates $x$ and $y$ is 0.6 $ cov (x,y)=4.8\: \sigma_x^2=9$ then $\sigma_y$ is
jeemain
math
cbse
class11
statistics
variance-and-standard-deviation
difficult
q37
asked
Jan 31, 2014
by
thanvigandhi_1
1
answer
In $Fe(CO)_5$,the $Fe-C$ bond poses
jeemain
chemistry
class12
coordination-compounds
unit9
q37
medium
asked
Jan 31, 2014
by
sreemathi.v
1
answer
In a common base amplifier current gain is $0.96$ and emitter current is $7.2\;mA$. The base current is
jeemain
physics
class12
unit19
ch14
q37
medium
transistors
semiconductor-electronics
asked
Jan 28, 2014
by
meena.p
1
answer
The correlation between $x$ and $a-x$ is
jeemain
math
cbse
class11
statistics
medium
variance-and-standard-deviation
q37
asked
Jan 27, 2014
by
thanvigandhi_1
1
answer
The ratio of volume of the hydrogen liberated at S.T.P when equal amounts of tin reacts with dilute NaOH and conc NaOH.
jeemain
chemistry
class11
s-block-elements
unit10
q37
medium
asked
Jan 27, 2014
by
sreemathi.v
1
answer
Which of the following is linear molecule
jeemain
chemistry
class11
hydrogen
unit9
q37
medium
asked
Jan 23, 2014
by
sreemathi.v
1
answer
What is the converse of the statement: n is divisible by 3, if the sum of digits of n is divisible by 3?
jeemain
math
mathematical-reasoning
class11
ch14
medium
implications-(tautology-contradiction.)
q37
asked
Jan 20, 2014
by
thanvigandhi_1
1
answer
Caliche is used in manufacture of
jeemain
chemistry
class11
environmental-chemistry
unit14
q37
medium
asked
Jan 20, 2014
by
sreemathi.v
1
answer
How many unpaired electrons are there in $Ni^{2+}$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q37
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
A and B throw a dice each. The probability that A's throw is not greater than B's throw is
jeemain
math
cbse
class11
probability
random-experiements
easy
q37
asked
Jan 9, 2014
by
thanvigandhi_1
1
answer
Assuming fully decomposed,the volume of $CO_2$ released at STP,on heating 9.85g of $BaCO_3$ (at wt of Ba=137)will be:
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
laws-of-chemical-combinations
q37
easy
asked
Jan 8, 2014
by
sreemathi.v
1
answer
A sample of chalk $(CaCO_3)$ is contaminated with calcium sulphate $(CaSO_4)$ 1gm of the solid mixture is dissolved in 230ml of N/10 HCl; 40ml of N/10 NaOH is required to neutralize the excess of acid.Find the percentage of chalk in the mixture.
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
q37
difficult
asked
Jan 8, 2014
by
sreemathi.v
1
answer
If the sum of n terms of the AP 55, 57, 59------ is equal to the sum of first 2n terms of the AP 1, 4, 710--------then n equals
jeemain
math
class11
ch9
sequences-and-series
easy
arithmetic-progression
q37
asked
Jan 2, 2014
by
yamini.v
1
answer
The angle between the lines whose $d.c.$ are given by the equations $3l+m+5n=0$ and $6mn-2nl+5lm=0$ is?
jeemain
math
class12
ch11
3d-geometry
equations-of-lines
difficult
q37
asked
Jan 1, 2014
by
rvidyagovindarajan_1
1
answer
$\lim\limits_{x\to 1}(\log_33x)^{\log_x3}$ is
jeemain
math
ch11
limits-continuity-and-differentiability
introduction to limits
easy
q37
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Curie temperature is the temperature above which :
aipmt
modelpaper
physics
2008
q37
asked
Dec 16, 2013
by
thanvigandhi_1
0
answers
Integrate : $ \int \limits _0^{n \pi +v} |\cos x | dx $
jeemain
math
class12
ch7
integral-calculus
integration-by-parts
medium
q37
asked
Dec 14, 2013
by
meena.p
1
answer
$Cd(Hg).CdSO_4.\large\frac{8}{3}$$H_2O(s)\parallel CdSO_4(sat)Hg_2SO_4(s)Hg$ and cell reaction is $Cd(Hg)+Hg_2SO_4(s)+\large\frac{8}{3}$$H_2O(l)\rightarrow CdSO_4.\large\frac{8}{3}$$H_2O(s)+2Hg(l)$.EMF of cell is 1.1V at $25^oC$.Then $\Delta H^o$ will be
jeemain
chemistry
unit8
redox-reactions-and-electrochemistry
q37
medium
asked
Dec 11, 2013
by
sreemathi.v
1
answer
In Cyathium inflorescunce, the ratio between male and female flowers is :
jeemain
eamcet
biology
2002
q37
asked
Dec 9, 2013
by
thanvigandhi_1
0
answers
Refer to the below reaction :
jeemain
chemistry
unit21
organic-chemistry
q37
difficult
basic-organic-chemistry
class11
ch12
asked
Dec 5, 2013
by
sreemathi.v
1
answer
What is the type of Placentation do you find in Nymphea ?
jeemain
eamcet
biology
2001
q37
asked
Dec 1, 2013
by
thanvigandhi_1
0
answers
The inert form of carbon is
jeemain
chemistry
unit15
p-block-elements
q37
medium
asked
Nov 27, 2013
by
sreemathi.v
1
answer
Amentum is found in :
jeemain
eamcet
biology
2000
q37
asked
Nov 25, 2013
by
thanvigandhi_1
0
answers
In which of the following reactions does $NH_3$ acts as an acid?
jeemain
aipmt
chemistry
equilibrium
easy
q37
biology
asked
Nov 23, 2013
by
mosymeow_1
1
answer
An example of planktonic flora of pond ecosystem
jeemain
eamcet
biology
1999
q37
asked
Nov 23, 2013
by
thanvigandhi_1
0
answers
If the system of linear equations $x+2ay+az=0,x+3by+bz=0,x+4cy+cz=0$ has a non-zero solution the a,b,c
jeemain
math
class12
ch4
determinants
q37
system-of-linear equations
easy
asked
Nov 21, 2013
by
sreemathi.v
1
answer
If $\tan^{-1}(x-1)+\tan^{-1}x+\tan^{-1}(x+1)=\tan^{-1}3x$ then $x$ is
jeemain
math
class12
ch2
inverse-trigonometric-functions
q37
inverse-trigonometric-properties
difficult
asked
Nov 19, 2013
by
sreemathi.v
1
answer
Study the following lists
jeemain
eamcet
biology
2010
q37
asked
Nov 12, 2013
by
thanvigandhi_1
0
answers
I : Two non-zero , non-collinear vectors are linearly independent. II. Any three coplanar vectors are linearly dependent .Which of the above statements is /are true?
jeemain
eamcet
math
2005
q37
asked
Nov 12, 2013
by
meena.p
1
answer
For non zero vectors $\overrightarrow a,\overrightarrow b\:and\:\overrightarrow c,\:\:if\:\:|(\overrightarrow a\times\overrightarrow b).\overrightarrow c|=|\overrightarrow a||\overrightarrow b||\overrightarrow c|$ then ?
jeemain
math
class12
ch10
vector-algebra
medium
vector-product
q37
asked
Nov 11, 2013
by
rvidyagovindarajan_1
1
answer
Which of the following is not correct ?
jeemain
eamcet
chemistry
2005
q37
asked
Nov 11, 2013
by
meena.p
0
answers
According to Moseley's law, the frequency (v) of the $K_{\alpha}$ line and the atomic number Z of the element have the relation (A and B are constants);
jeemain
eamcet
physics
2005
q37
asked
Nov 8, 2013
by
meena.p
0
answers
If the volume of parallelopiped with conterminus edges $4 \hat i+5 \hat j+\hat k, -\hat j+\hat k$ and $3 \hat i+9 \hat j +p \hat k$ is 34 cubic units, then p is equal to :
jeemain
eamcet
math
2006
q37
asked
Nov 6, 2013
by
meena.p
1
answer
Eithyl chloride reacts with sodium ethoxide to form a compound A. Which of the following reactions also yields A?
jeemain
eamcet
chemistry
2006
q37
asked
Nov 5, 2013
by
meena.p
1
answer
A oil drop having a mass $4.8 \times 10^{10}\;g$ and charge $2.4 \times 10^{-18}\;C$ stands still between two charged horizontal plates separated by a distance of 1 cm. If now the polarity of the plates is changed, instantaneous acceleration of the drop is : $(g= 10 ms^{-2}$)
jeemain
eamcet
physics
2006
q37
asked
Oct 29, 2013
by
meena.p
1
answer
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