Van't Hoff factors of aqueous solutions of X, Y, Z are 1.8, 0.8 and 2.5. Hence, correct order of their boiling point is (assume equal concentrations in all three cases) :

Question

Aayush Asked Feb 1

50 views

1 Answer

RELATED DOUBTS

Aayush Asked Jan 31

41 views

Increase in boiling point of aqueous solution of urea is 0.1The increase in the boiling point of aqueous solution of NaCl of same concentration is nearly —

Aayush Asked Jan 31

by Aayush

1 Answer

0 Votes

41 Views

Chandan Asked Aug 6, 2023

69 views

The equation of the plane passing through the line $\frac{x-1}{5}=\frac{y+2}{6}=\frac{z-3}{4}$ and the point $(4,3,7)$ is

Chandan Asked Aug 6, 2023

by Chandan

1 Answer

0 Votes

69 Views

Aayush Asked Feb 23

22 views

If $f(x)=\left\{\begin{array}{ll}\sin x \neq n \pi, n \in Z \\ 0, & \text { otherwise }\end{array}\right.$ and $g(x)=\left\{\begin{array}{ll}x^2+1, & x \neq 0,2 \\ 4, & x=0 \\ 5, & x=2\end{array}\right.$, then $\lim _{x \rightarrow 0} g\{f(x)\}$ is equal to

Aayush Asked Feb 23

by Aayush

1 Answer

0 Votes

22 Views

Aayush Asked Jan 3

74 views

The specific conductivity of an aqueous solution of a weak monoprotic acid is $0.00033$ ohm $^{-1} cm ^{-1}$ at a concentration $0.02 M$.

Aayush Asked Jan 3

by Aayush

1 Answer

0 Votes

74 Views

AnjaliYadav Asked Oct 9, 2022

123 views

The element X and Y form a compound which contains the element in ratio of 1: 3 by mass. If their vapor density are in ratio of 2: 3 find empirical formula of compound.

AnjaliYadav Asked Oct 9, 2022

by AnjaliYadav

1 Answer

1 Vote

123 Views

LEELADHAR YADAV Asked Sep 5, 2023

175 views

Determine the integral values of ' $k$ ' for which the system, $\left(\tan ^{-1} x\right)^2+\left(\cos ^{-1} y\right)^2=\pi^2 k$ and $\tan ^{-1} x+\cos ^{-1} y=\frac{\pi}{2}$ possess solution and find all the solutions.

LEELADHAR YADAV Asked Sep 5, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

175 Views

ALOK_RAJ Asked Aug 31, 2023

86 views

The set of values of a for which the point (a-1, a+1) lies outside the circle x2 + y2 = 8 and inside the circle $x^{2}+y^{2}-12 x+12 y-62=0$ is

ALOK_RAJ Asked Aug 31, 2023

by ALOK_RAJ

1 Answer

0 Votes

86 Views

ALOK_RAJ Asked Aug 18, 2023

93 views

Which of the following molarity values of ions in an aqueous solution containing 5.85 % w/v NaCl , 5.55 % w/v CaCl2 and 6% w/v NaOH is/are correct :

ALOK_RAJ Asked Aug 18, 2023

by ALOK_RAJ

1 Answer

0 Votes

93 Views

Aayush Asked Jan 31

35 views

2.56 g of sulphur in 100 g of CS2 has depression in freezing point of 0.01°$C.K_f$ = 0.1°molal$^{-1}$. Hence, the atomicity of sulphur in CS2 is —

Aayush Asked Jan 31

by Aayush

1 Answer

0 Votes

35 Views

Chandan Asked Aug 26, 2023

297 views

Z vs P graph is plotted for 1 mole of three different gases X, Y and Z at temperature T1.

Chandan Asked Aug 26, 2023

by Chandan

1 Answer

0 Votes

297 Views

John Michael Asked Aug 12, 2023

107 views

If the median of x/5, x, x/4, x/2 and x/3, where x>0, is 8 then the value of x is equal to

John Michael Asked Aug 12, 2023

by John Michael

1 Answer

0 Votes

107 Views

LEELADHAR YADAV Asked Aug 17, 2023

77 views

Let * be a binary operation on Z defined by $x^* y=x^2+y^2+x y ; x, y \in Z$. The value of $\left[\left(1^* 2\right)+\left(0^* 3\right)\right]^2$ is

LEELADHAR YADAV Asked Aug 17, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

77 Views

Ankit Asked Oct 11, 2023

83 views

The equation of circle with centre (1,2) and tangent x+y-5=0 is

Ankit Asked Oct 11, 2023

by Ankit

1 Answer

0 Votes

83 Views

Aayush Asked Feb 23

46 views

A triangle is formed by joining three points A(8,2), B(-4,-4) and C(16,1) on rectangular hyperbola xy=16. If orthocentre of the triangle ABC is (h, k) then product hk is equal to

Aayush Asked Feb 23

by Aayush

1 Answer

0 Votes

46 Views

LEELADHAR YADAV Asked Aug 22, 2023

27 views

Show that the relation S in the set $A=\{x \in Z: 0 \leq x \leq 12\}$ given by $S=\{(a, b): a, b \in Z,|a-b|$ is divisible by 4$\}$ is an equivalence relation. Find the set of all elements related to 1 .

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

27 Views

LEELADHAR YADAV Asked Aug 22, 2023

30 views

Show that the relation S in the set $A=\{x \in Z: 0 \leq x \leq 12\}$ given by $S=\{(a, b): a, b \in Z,|a-b|$ is divisible by 4$\}$ is an equivalence relation. Find the set of all elements related to 1 .

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

30 Views

ANAND_YADAV Asked Jul 26, 2023

27 views

Two equal and opposite charges $4×10^{-8}C$ are placed $2×10^{-2}$ cm away, from a dipole. If this dipole is placed in an external electric field of $4×10^8NC^{-1}$

ANAND_YADAV Asked Jul 26, 2023

by ANAND_YADAV

1 Answer

0 Votes

27 Views

ANAND_YADAV Asked Jul 29, 2023

105 views

An experiment measures quantities $x, y, z$ and then $t$ is calculated from the data as $t=\frac{x y^{2}}{z^{3}}$. If percentage errors in $x , y$ and $z$ are respectively $1 \%, 3 \%, 2 \%$, then percentage error in $t$ is :

ANAND_YADAV Asked Jul 29, 2023

by ANAND_YADAV

1 Answer

0 Votes

105 Views

Ankit Asked Sep 20, 2023

137 views

Suppose, S and S' are foci of the ellipse $\frac{x^2}{25}+\frac{y^2}{16}=1$. If P is variable point on the ellipse and if $\Delta$ is area of the triangle PSS', then the maximum value of $\triangle$ is

Ankit Asked Sep 20, 2023

by Ankit

1 Answer

0 Votes

137 Views

Aayush Asked Mar 2

40 views

If y is a function of x and $\log (x+y)=2 x y$, then the value of $y^{\prime}(0)$ is equal to

Aayush Asked Mar 2

by Aayush

1 Answer

0 Votes

40 Views

ALOK_RAJ Asked Dec 17, 2023

43 views

The value of $\lim _{x \rightarrow 0} \frac{2-(256-7 x)^{1 / 8}}{(5 x+32)^{1 / 5}-2}$ is

ALOK_RAJ Asked Dec 17, 2023

by ALOK_RAJ

1 Answer

1 Vote

43 Views

Chandan Asked Aug 9, 2023

155 views

At the critical point for H2 gas, value of Z =3 / 8. Then, the value of Z for the similar conditions of CO2, O2, SO2 at their respective critical points will be :

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

155 Views

LEELADHAR YADAV Asked Sep 5, 2023

178 views

(i) Find all positive integral solutions of the equation, $\tan ^{-1} x+\cot ^{-1} y=\tan ^{-1} 3$. (ii) If ' $k$ ' be a positive integer, then show that the equation: $\tan ^{-1} x+\tan ^{-1} y=\tan ^{-1} k$ has no non-zero integral solution.

LEELADHAR YADAV Asked Sep 5, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

178 Views

ALOK_RAJ Asked Aug 26, 2023

155 views

In the following reaction, 3A(g) + B(g) ⇌ 2C(g) + D(g), Initial moles of B is double of A. At equilibrium, moles of A and C are equal. Hence % dissociation of B is :

ALOK_RAJ Asked Aug 26, 2023

by ALOK_RAJ

1 Answer

0 Votes

155 Views

Chandan Asked Aug 9, 2023

215 views

Which of the following is correct order of temperature shown in the above graph Z Vs P for the same gas:

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

215 Views

ALOK_RAJ Asked Aug 31, 2023

198 views

The equation of circle which touches the line x + 3y - 2 = 0 and 3x + 9y - 2 = 0, also the point of contact on first line is (-1,1), is

ALOK_RAJ Asked Aug 31, 2023

by ALOK_RAJ

1 Answer

–1 Vote

198 Views

Aayush Asked Mar 3

37 views

A function f is defined by $f(x)=2+(x-1)^{2 / 3}$ in [0,2]. Which of the following is not correct?

Aayush Asked Mar 3

by Aayush

1 Answer

0 Votes

37 Views

LEELADHAR YADAV Asked Aug 13, 2023

95 views

Let * be a binary operation on Z × Z defined by $(a, b)^*(c, d)=(a+c, b+d) ;(a, b),(c, d) \in Z \times Z$. Find $(1,2) *(3,5)$ and $(4,3) *(1,0)$.

LEELADHAR YADAV Asked Aug 13, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

95 Views

Chandan Asked Sep 15, 2023

210 views

Two elements X (at. mass =16) and Y (at. mass =14) combine to form compounds A, B and C. The ratio of different masses of Y which combines with a fixed mass of X in A, B and C is 1: 3: 5.

Chandan Asked Sep 15, 2023

by Chandan

1 Answer

0 Votes

210 Views

John Michael Asked Aug 8, 2023

62 views

The direction cosines of the line $\frac{3 x+1}{-3}=\frac{3 y+2}{6}=\frac{z}{-1}$ are

John Michael Asked Aug 8, 2023

by John Michael

1 Answer

0 Votes

62 Views

Aayush Asked Jan 4

57 views

Calculate the number of photons emitted by a 100-W yellow lamp in 1.0 second. The wavelength of yellow light is 500 nm and assume hundred percent efficiency.

Aayush Asked Jan 4

by Aayush

1 Answer

0 Votes

57 Views

LEELADHAR YADAV Asked Aug 15, 2023

59 views

In the set A={1,2,3,4,5} a relation R is defined by $R=\{(x, y) \mid x, y \in A$ and $x<y\}$. Then R is

LEELADHAR YADAV Asked Aug 15, 2023

by LEELADHAR YADAV

1 Answer

0 Votes

59 Views

Aayush Asked Mar 2

28 views

If $y=\tan ^{-1}\left(\frac{\cos x}{1+\sin x}\right), 0<x<\frac{\pi}{2}$, then $\frac{d y}{d x}$ is equal to

Aayush Asked Mar 2

by Aayush

1 Answer

0 Votes

28 Views

Saurabh Kumar Verma Asked Jun 9, 2022

127 views

If G be the geometric mean of x and y, then $\frac{1}{G^2-x^2}+\frac{1}{G^2-y^2}$ is equal to

Saurabh Kumar Verma Asked Jun 9, 2022

by Saurabh Kumar Verma

1 Answer

3 Votes

127 Views

ALOK_RAJ Asked Nov 22, 2023

89 views

If a grain is equal to 64.8 mg, how many moles of aspirin (mol. wt. = 169) are present in 5.00 grain aspirin tablet?

ALOK_RAJ Asked Nov 22, 2023

by ALOK_RAJ

1 Answer

0 Votes

89 Views

ASK DOUBTS

Van't Hoff factors of aqueous solutions of X, Y, Z are 1.8, 0.8 and 2.5. Hence, correct order of their boiling point is (assume equal concentrations in all three cases) :

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

RELATED DOUBTS

CATEGORIES

POPULAR TAGS