Synthetic and natural polymers Sample Question Paper With Answer Key
JEE Chemistry- Synthetic and natural polymers Sample Question Paper With Answer Key
Which of the following is fully fluorinated polymer?
PVC
b)Thiokol
c)Teflon
d)Neoprene
d
JEE Chemistry- d-& f-block Element Sample Question Paper With Answer Key
KMnO4 acts as oxidising agent in acidic medium. The number o moles of KmnO4 that will be needed to react with one mole of sulphide ions in acidic solution is
\(2\over 5\)
b)\(3\over 5\)
c)\(4\over 5\)
d)\(1\over 5\)
Chemical Thermodynamics Sample Question Paper With Answer Key
JEE Chemistry- Chemical Thermodynamics Sample Question Paper With Answer Key
During the adiabatic process,
pressure is maintained constant
b)gas is isothermally expanded
c)there is a perfect heat insulation
d)the system changes heat with surroundings
State of Matter : Solid State Sample Question Paper With Answer Key
JEE Chemistry- State of Matter : Solid State Sample Question Paper With Answer Key
Solid carbon dioxide is an example of
metallic crystal
b)cavalent crystal
c)molecular crystal
d)ionic crystal
Chemical Combination Sample Question Paper With Answer Key
JEE Chemistry- Chemical Combination Sample Question Paper With Answer Key
Law of constant composition does not hold true for
endothermic compounds
b)exothermic compounds
c)stoichiometric compounds
d)non-stoichiometric compounds
Some important points and important questions on organic chemistry Sample Question Paper With Answer Key
JEE Chemistry- Some important points and important questions on organic chemistry Sample Question Paper With Answer Key
The Major product of nitration of benzoic acid is
3-nitrobenzoic acid
b)4-nitrobenzoic acid
c)2-nitrobenzoic acid
d)2,4-dinitrobenzoic acid
Oxidation
JEE Chemistry - Oxidation-Reduction Chapter Sample Question Paper With Answer Key
The reaction, \({ 3ClO }^{ - }(aq)\longrightarrow { ClO }_{ 3 }^{ - }(aq)+2{ Cl }^{ - }(aq),\) is an example of
oxidation
b)reduction
c)disproportionation
d)decomposition
Electrochemistry Chapter Sample Question Paper With Answer Key
JEE Chemistry - Electrochemistry Chapter Sample Question Paper With Answer Key
When a copper wire is immersed in silver nitrate solution ,the colour of the solution becomes blue,because copper
Oxidises silver into silver ions
b)reduces silver ions in the solution
c)is reduced to copper(i)
d)is oxidised to copper(i)
Current Electricity Chapter Sample Question Paper With Answer Key
JEE Physics - Current Electricity Chapter Sample Question Paper With Answer Key
If 400\(\Omega\) of resistance is made by adding four 100\(\Omega\) resistance of tolerance 5%, then the tolerance of the combination is
20%
b)5%
c)10%
d)15%
Units & measurement Question Paper With Answer Key
JEE Physics - Units & measurement Question Paper With Answer Key
If L has the dimensions of length; V that of potential and \({ \epsilon }_{ 0 }\) is the permittivity of free space, than the quantity \({ \epsilon }_{ 0 }LV\) have the dimensions of
current
b)charge
c)resistance
d)voltage
Theory of Equations Sections Question Paper With Answer Key
JEE Mathematics - Theory of Equations Sections Question Paper With Answer Key
The solution set of (x)2 + (x + 1)2 = 25, where (x) is the nearest integer greater than or equal to x, is
(2,4)
b)[-5,-4] U [2,3)
c)[-4,-3) U [3,4)
d)none of these
Integral Calclus Chapter Sample Question Paper With Answer Key
JEE Mathematics - Integral Calclus Chapter Sample Question Paper With Answer Key
\(\int { \frac { sinx }{ sin|x-\alpha ) } } dx,\) equals
\((x-\alpha )cos\alpha +sin\alpha logsin(x-\alpha )+c\)
b)\((x-\alpha )sin\alpha +sin\alpha logsin|x-\alpha )+c\)
c)\((x-\alpha )sin\alpha +sin\alpha logcos(x-\alpha )+c\)
d)NONE OF THESE
Differential Calclus Chapter Sample Question Paper With Answer Key
JEE Mathematics - Differential Calclus Chapter Sample Question Paper With Answer Key
If \(f(x)=cos[{ \Pi }^{ `2 }]x+cos[{ -\Pi }^{ `2 }]x,\)where [x] stands for the greatest integer function,then
\(f(\frac { \Pi }{ 2 } )=-1\)
b)\(f(\pi )=1\)
c)\(f(-\pi )=1\)
d)\(f(\frac { \Pi }{ 4 } )=2\)
Probability Chapter Sample Question Paper With Answer Key
JEE Mathematics - Probability Chapter Sample Question Paper With Answer Key
Consider the experiment of rolling a die. Let A be the event of 'getting a prime number and B be the event of 'getting an odd number', then
A and B=
{1, 2, 3, 5}
b){1, 2}
c){3, 5}
d){5}
Statistics Chapter Sample Question Paper With Answer Key
JEE Mathematics - Statistics Chapter Sample Question Paper With Answer Key
The one which is the measure of the central tendency, is
mode
b)range
c)mean deviation
d)standard deviation
Three Dimensional Geometry Chapter Sample Question Paper With Answer Key
JEE Mathematics - Three Dimensional Geometry Chapter Sample Question Paper With Answer Key
If -2, 2,1 are direction of a line, then its direction cosines are
\(-\frac{2}{3},\frac{2}{3},\frac{1}{3}\)
b)\(\frac{2}{3},-\frac{2}{3},\frac{1}{3}\)
c)\(\frac{2}{3},-\frac{2}{3}-,\frac{1}{3}\)
d)\(-\frac{2}{3},\frac{2}{3},-\frac{1}{3}\)
Vector Algebra Chapter Sample Question Paper With Answer Key
JEE Mathematics - Vector Algebra Chapter Sample Question Paper With Answer Key
\(\left| \vec { a } \times \vec { b } \right| ^{ 2 }+\left| \vec { a } .\vec { b } \right| ^{ 2 }\) =144 and \(\left| \vec { a } \right| =4\) and \(\left| \vec { b } \right| \) is equal to
2
b)6
c)8
d)20
Coordinate Geometry
JEE Mathematics - Coordinate Geometry - II Chapter Sample Question Paper With Answer Key
Let \({ f }_{ 1 }\left( x,y \right) \equiv { ax }^{ 2 }+2hxy+b{ y }^{ 2 }=0\) and let \({ f }_{ i+1 }\left( x,y \right) =0\) denotes the equation of the bisectors of \({ f }_{ i }\left( x,y \right) =0\) for all i = 1, 2, 3, ....
On the basis of above information, answer the following questions:
If fi+1(x, y) = 0 represents the equation of a pair of perpendicular lines, then \({ f }_{ n+2 }\left( x,y \right) =0\forall n\ge 2\) is same as
\({ f }_{ n+2 }\left( x,y \right) =0\)
b)\({ f }_{ n+1 }\left( x,y \right) =0\)
c)\({ f }_{ n }\left( x,y \right) =0\)
d)none of the above
Trigonometry Chapter Sample Question Paper With Answer Key
JEE Mathematics - Trigonometry Chapter Sample Question Paper With Answer Key
If \(\cos { x } +\sin { x } =a\left( -\frac { \pi }{ 2 } <x<-\frac { \pi }{ 4 } \right) \), then cos 2x is equal to
a2
b)\(a\sqrt { \left( 2-a \right) } \)
c)\(a\sqrt { \left( 2+a \right) } \)
d)\(a\sqrt { \left( 2-{ a }^{ 2 } \right) } \)
Coordinate Geometry
JEE Mathematics - Coordinate Geometry - I Chapter Sample Question Paper With Answer Key
If the two circles x2+y2=r2 and (x-5)2+y2=9 intersect in two distinct points,then
2
r<2
c)r=2
d)r>2
Sequences and Series Chapter Sample Question Paper With Answer Key
JEE Mathematics - Sequences and Series Chapter Sample Question Paper With Answer Key
In the quadratic equation a x2 + bx + c = 0, if \(\Delta ={ b }^{ 2 }-4ac\) and \(\alpha +\beta ,{ a }^{ 2 }+{ \beta }^{ 2 },{ a }^{ 3 }+{ \beta }^{ 3 }\) are in GP, where a, \(\beta\) are the roots of a x2 + bx + c = 0, then
\(\Delta \neq 0\)
b)\(b\Delta =0\)
c)\(c\Delta =0\)
d)\(\Delta =0\)
Binomial Theorem and Its Application Chapter Sample Question Paper With Answer Key
JEE Mathematics - Binomial Theorem and Its Application Chapter Sample Question Paper With Answer Key
if the coefficients of x7 and x8 in \(\left( 2+\frac { x }{ 3 } \right) ^{ n }\) are equal then n is
56
b)55
c)45
d)15
Mathematical Induction and its Application Chapter Sample Question Paper With Answer Key
JEE Mathematics - Mathematical Induction and its Application Chapter Sample Question Paper With Answer Key
If m and n are two odd positive integers with n
4
b)6
c)8
d)9
Permutation and Combinations Chapter Sample Question Paper With Answer Key
JEE Mathematics - Permutation and Combinations Chapter Sample Question Paper With Answer Key
Compute \(\cfrac { 7! }{ 5! } \)
42
b)40
c)43
d)44
Quadratic Equations Chapter Sample Question Paper With Answer Key
JEE Mathematics - Quadratic Equations Chapter Sample Question Paper With Answer Key
If \(\alpha \) and \(\beta \) are the roots of the equation \({ 2x }^{ 2 }-(p+1)x+(p-1)=0\) and \(\alpha -\beta =\alpha \beta \), then what is the value of p
1
b)2
c)3
d)- 2
Determinants and Matrices Chapter Sample Question Paper With Answer Key
JEE Mathematics - Determinants and Matrices Chapter Sample Question Paper With Answer Key
If a,b,c are distinct real numbers and
\(\left| \begin{matrix} a & { a }^{ 2 } & { a }^{ 3 }-1 \\ b & b^{ 2 } & { b }^{ 3 }-1 \\ c & { c }^{ 2 } & { c }^{ 3 }-1 \end{matrix} \right| =0\) then
a+b+c=0
b)abc=1
c)a+b+c=1
d)ab+bc+ca=0
Complex Numbers Chapter Sample Question Paper With Answer Key
JEE Mathematics - Complex Numbers Chapter Sample Question Paper With Answer Key
The modulus of the complex number \(z=\frac { (1-i\sqrt { 3 } )(cos\theta +isin\theta ) }{ 2(1-i)(cos\theta -isin\theta ) } \) is
\(\frac{1}{2\sqrt{2}}\)
b)\(\frac{1}{\sqrt{3}}\)
c)\(\frac{1}{\sqrt{2}}\)
d)2\(\sqrt{3}\)
Set Theory, Relations and Mapping Chapter Sample Question Paper With Answer Key
JEE Mathematics - Set Theory, Relations and Mapping Chapter Sample Question Paper With Answer Key
If P={1,2} then the set PxPxP is
{(1,1,1), (1,1,2), (1,2,1), (1,2,2), (2,1,1), (2,1,2), (2,2,1), (2,2,2)
b){(1,1,1), (1,1,2), (2,2,2), (1,2,1), (2,1,1), (2,1,2), (2,1,2), (2,2,1)}
c){(2,1,1), (2,2,2), (1,1,1)
d)None of these
JEE MAINS
JEE MAINS
The sum of the series 12+(12+22)+(12+22+32)to n terms=...
\({n(n+1)^2(n+2)\over12}\)
b)\({n(n+1)^2(n+3)\over12}\)
c)\({n(n+2)^2(n+1)\over12}\)
d)\({n(n+2)^2(n+1)\over14}\)
Biomolecules Structure and Functions and Chemistry of Some Biological Process Important Questions with Answer
JEE Main Chemistry - Biomolecules Structure and Functions and Chemistry of Some Biological Process Important Questions with Answer
Isoelectric point is a
specific temperature
b)suitable concentration of amino acid
c)melting point of an amino acid under the influence of amino acid
d)hydrogen ion concentration that does not allow migration of amino acid under electric field
Latest Engineering Entrance Exam Posts
Other Engineering Entrance Exam Packs
1654060945.png)
1654060942.png)
1653987551.png)
1653987086.png)
1582095229.jpg)
1529578050.png)
