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EAMCET
EAMCET
Physics
Chemistry
Mathematics
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The locus represented by $|z-1|=|z+i|$ is :
jeemain
eamcet
math
1991
q11
asked
Sep 13, 2013
by
meena.p
1
answer
If the mean and variance of a binomial distribution are $\large\frac{15}{4}$ and $\large\frac{15}{16}$. The number of trials are:
jeemain
eamcet
math
1991
q10
asked
Sep 13, 2013
by
meena.p
1
answer
The length of the latus rectum of an ellipse is $\large\frac{1}{3}$ of the major axis. It's $e$ is :
jeemain
eamcet
math
1991
q9
asked
Sep 13, 2013
by
meena.p
1
answer
The probabilities of problem being solved by two students are $\large\frac{1}{2}$ and $\large\frac{1}{3}$. Find the probability of the problem being solved.
jeemain
eamcet
math
1991
q8
asked
Sep 12, 2013
by
meena.p
1
answer
The unit vector perpendicular to each of $2 \hat {i}-\hat {j}+\hat {k}$ and $ 3 \hat {i}+4 \hat j-\hat k$ is :
jeemain
eamcet
math
1991
q7
asked
Sep 12, 2013
by
meena.p
1
answer
The number of non-zero terms in the expansion of $(1+ 3 \sqrt {2}x)^9+(1-3 \sqrt {2} x)^9$ is equal to :
jeemain
eamcet
math
1991
q6
asked
Sep 12, 2013
by
meena.p
1
answer
$\tan x-\tan 3x-\tan 2x $ is equal to :
jeemain
eamcet
math
1991
q5
asked
Sep 12, 2013
by
meena.p
1
answer
$y= \sin ^{-1} \bigg[\large\frac{1-x^2}{1+x^2}\bigg],$ find $\large\frac{dy}{dx}$:
jeemain
eamcet
math
1991
q4
asked
Sep 12, 2013
by
meena.p
1
answer
The orthocentre of a triangle whose vertices are $(0,0),(8,0),(4,6), $ is :
jeemain
eamcet
math
1991
q3
asked
Sep 12, 2013
by
meena.p
1
answer
In how many ways can 5 red and 4 white balls be drawn from a bag containing 10 red and 8 white balls?
jeemain
eamcet
math
1991
q2
asked
Sep 12, 2013
by
meena.p
1
answer
If the function $f(x)=\large\frac{3x+4 \tan x}{x}$ is continuous, then what is the value of $f(x)$ at $x=0$?
jeemain
eamcet
math
1991
q1
asked
Sep 12, 2013
by
meena.p
1
answer
Nucleides having different mass number and different atomic number, but the same number of neutrons are called ...................... .
jeemain
eamcet
chemistry
1991
fitb
q50
asked
Sep 12, 2013
by
meena.p
1
answer
The coordinating number of the ions in the CsCI crystal lattice is ................. .
jeemain
eamcet
chemistry
1991
fitb
q49
asked
Sep 12, 2013
by
meena.p
0
answers
A few drops of an organic compound (liquid) are added to schiff's reagent. A pink colour is produced. The organic compound is ................. .
jeemain
eamcet
chemistry
1991
fitb
q48
asked
Sep 12, 2013
by
meena.p
1
answer
$0.1\;M\;HCL$ solution is diluted by $100\;times$. The pH of the solution so formed is .............. .
jeemain
eamcet
chemistry
1991
fitb
q47
asked
Sep 12, 2013
by
meena.p
0
answers
The kinetic energy of 8g of $H_2$ at $27^{\circ}C$ is ................. times more than the kinetic energy of $8g$ of $O_2$ at the same temperature.
jeemain
eamcet
chemistry
1991
fitb
q46
asked
Sep 12, 2013
by
meena.p
0
answers
The weight of oxalic acid crystals $H_2C_2O_2.2H_2O$ required to prepare $500\;mL$ of $0.2\;N$ solution is ................... .
jeemain
eamcet
chemistry
1991
fitb
q45
asked
Sep 12, 2013
by
meena.p
0
answers
Aqueous solution of $FeCl_3$ is acidic because of .............. .
jeemain
eamcet
chemistry
1991
fitb
q44
asked
Sep 12, 2013
by
meena.p
0
answers
The half life of a radioactive substance is $100$ sec. It's disintegration constant is ..................... .
jeemain
eamcet
chemistry
1991
fitb
q43
asked
Sep 12, 2013
by
meena.p
0
answers
In the reaction $^{19}_8 O+_1H^2 \to ^{18}_8O+X,X$ is ................... .
jeemain
eamcet
chemistry
1991
fitb
q42
asked
Sep 12, 2013
by
meena.p
0
answers
The reaction between .............. Baeyer reagent gives ethylene glycol.
jeemain
eamcet
1991
fitb
q41
asked
Sep 12, 2013
by
meena.p
0
answers
Water has a higher boiling point than corresponding hydrides $H_2S,H_2Se$ and $H_2Te$. This is because of ............. in water.
jeemain
eamcet
chemistry
1991
fitb
q40
asked
Sep 12, 2013
by
meena.p
0
answers
The normal boiling point of, $CS_2,H_2O$ and $CCl_4$ are $41.3^{\circ}C,100^{\circ}C$ and $77^{\circ}C$ respectively. The liquid in which the inter molecular forces are the weakest is ................ .
jeemain
eamcet
chemistry
1991
fitb
q39
asked
Sep 12, 2013
by
meena.p
0
answers
The magnetic quantum number $m$ for the outermost electron in the Na atom is .............. .
jeemain
eamcet
chemistry
1991
fitb
q38
asked
Sep 12, 2013
by
meena.p
2
answers
Besides $SiO_2$ and $Al_2O_3$ the other major ingradient in portland cement is ................. .
jeemain
eamcet
chemistry
1991
fitb
q37
asked
Sep 12, 2013
by
meena.p
0
answers
Refer the below equation:
jeemain
eamcet
chemistry
1991
fitb
q35
asked
Sep 12, 2013
by
meena.p
0
answers
The number of $\sigma $ bonds in the ethylene molecule is ............... .
jeemain
eamcet
chemistry
1991
fitb
q36
asked
Sep 12, 2013
by
meena.p
0
answers
The mass number of a nuclide is 125. Its nuclear radius is .................. fermi.
jeemain
eamcet
chemistry
1991
fitb
q34
asked
Sep 12, 2013
by
meena.p
0
answers
The maximum number of electron that can be accommodated in all the orbitals for which $l=3$, is .............. .
jeemain
eamcet
chemistry
1991
fitb
q33
asked
Sep 12, 2013
by
meena.p
0
answers
Reduction of acetaldehyde in presence of $LiAlH_4$ gives ...............
jeemain
eamcet
chemistry
1991
fitb
q32
asked
Sep 12, 2013
by
meena.p
0
answers
Among the $SO_2,H_2SO_4$ and sodium thiosuphate, sulphur has the highest oxidation state in .............. .
jeemain
eamcet
chemistry
1991
fitb
q31
asked
Sep 12, 2013
by
meena.p
0
answers
The non-metallic element present in the mineral cryolite is ............... .
jeemain
eamcet
chemistry
1991
fitb
q30
asked
Sep 12, 2013
by
meena.p
1
answer
In the reaction $C_2O_4^{2-}+MnO^{-}_4+H^{+} \to H_2O+Mn^{2+}+CO_2$ the reductant is ............... .
jeemain
eamcet
chemistry
1991
fitb
q29
asked
Sep 12, 2013
by
meena.p
0
answers
Chloroform reacts with $HNO_3$ ............... .
jeemain
eamcet
chemistry
1991
fitb
q28
asked
Sep 12, 2013
by
meena.p
0
answers
The process of slow cooling of glass is called .............. .
jeemain
eamcet
chemistry
1991
fitb
q27
asked
Sep 12, 2013
by
meena.p
0
answers
Phosgene is formed when ................. is exposed to air and sun light.
jeemain
eamcet
chemistry
1991
fitb
q26
asked
Sep 12, 2013
by
meena.p
0
answers
If the pressure and the absolute temperature of a given mass of gas are doubled, the new volume will be ................ the initial volume.
jeemain
eamcet
chemistry
1991
fitb
q25
asked
Sep 12, 2013
by
meena.p
0
answers
Among the alkali metals, the metal with the highest ionisation potential is ................ .
jeemain
eamcet
chemistry
1991
fitb
q24
asked
Sep 12, 2013
by
meena.p
0
answers
The conjugate base of $HSO^-_4$ ion is ............. .
jeemain
eamcet
chemistry
1991
fitb
q23
asked
Sep 12, 2013
by
meena.p
0
answers
The rate of diffusion of He is .............. the rate of diffusion of $CH_4$.
jeemain
eamcet
chemistry
1991
fitb
q22
asked
Sep 12, 2013
by
meena.p
0
answers
The number of moles of barium carbonate which contains $1.5$ moles of $O_2$ atoms is .................. .
jeemain
eamcet
chemistry
1991
fitb
q21
asked
Sep 12, 2013
by
meena.p
0
answers
When an electron in an excited hydrogen atom jumps from an energy level for which $n=5$ level for which $n=2$ the spectral line is observed in the .................. series of the hydrogen spectrum.
jeemain
eamcet
chemistry
1991
fitb
q20
asked
Sep 12, 2013
by
meena.p
0
answers
The reagent that has action on glass is :
jeemain
eamcet
chemistry
1991
q19
asked
Sep 11, 2013
by
meena.p
1
answer
One atom of $^{39}_{19} K$ contains :
jeemain
eamcet
chemistry
1991
q18
asked
Sep 11, 2013
by
meena.p
1
answer
$9.8\;g$ of $H_2 SO_4$ is present in two liters of a solution. The molarity of the solution is :
jeemain
eamcet
chemistry
1991
q17
asked
Sep 11, 2013
by
meena.p
1
answer
Which of the following oxides of nitrogen is anhydride of $HNO_3$ ?
jeemain
eamcet
chemistry
1991
q16
asked
Sep 11, 2013
by
meena.p
1
answer
The bonds in $K_4 Fe(CN)_6$ are:
jeemain
eamcet
chemistry
1991
q15
asked
Sep 11, 2013
by
meena.p
1
answer
The $pK_a$ of a certain weak acid is $4.0.$ What should be the [salt] to [acid] ratio, if we have to prepare a buffer with a $pH=5$ using the acid and one of the salts?
jeemain
eamcet
chemistry
1991
q14
asked
Sep 11, 2013
by
meena.p
1
answer
Which of the following statements about the halogen is correct?
jeemain
eamcet
chemistry
1991
q13
asked
Sep 11, 2013
by
meena.p
1
answer
In which one of the following reactions does the heat change represent the heat of formation of water?
jeemain
eamcet
chemistry
1991
q12
asked
Sep 11, 2013
by
meena.p
1
answer
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