Which from following is an example of multimolecular colloid?
Calculate the pressure of gas if the solubility of gas in water at 25°C is 6.85 x 10–4 mol.dm–3. (Henry’s law constant is 6.85 x 10–4 mol.dm–3.bar–1)
Which among the following amino acids is NOT synthesized in our body?
The coefficient of linear expansion of brass and steel rod are ‘α1’ and ‘α2’ respectively. Lengths of brass and steel rods are ‘l1’ and‘l2’ respectively. If (l2 - l1) is maintained same at all temperatures, which one of the following relation is correct?
Identify the product Y in the following reaction
What is the relation between molar mass of solute and boiling point elevation of solution?
What is the pH of the solution containing 1.342 x 10–3 M H+ ions? (log 1.342 =0.1277)
The reagent used in Hofmann elimination reaction is
The ratio of the speed of sound in helium gas to that in nitrogen gas at same temperature is (γHe = \(\frac {5}{3}\), γN2 = 4 , M N2 =28)
An electron jumps from the 4th orbit to the 2nd orbit of hydrogen atom. Given the Rydberg’s constant R = 107 m-1. The frequency in Hz of the emitted radiation is (c = 3x108 m/s)
A van is moving with a speed of 108 km/hr on a level road where the coefficient of friction between the tyres and the road is 0.5. For the safe driving of the van, the minimum radius of curvature of the road shall be (Acceleration due to gravity, g=10 m/s2)
The maximum speed of a particle in S.H.M. is V. The average speed is
A galvanometer of resistance G has voltage range Vg. Resistance required to convert it to read voltage up to V is
Which of the following statement patterns is a contradiction? \[ \begin{aligned} S_1 &: (p \to q) \land (p \land \sim q) \\ S_2 &: [p \land (p \to q)] \to q \\ S_3 &: (p \lor q) \to \sim p \\ S_4 &: [p \land (p \to q)] \leftrightarrow q \end{aligned} \]
If \[ y = \cot^{-1}\!\left(\sqrt{\frac{1-\sin x}{1+\sin x}}\right), \quad \text{then find} \quad \frac{dy}{dx}. \]
If the L.M.V.T. holds for the function \( f(x) = x + \dfrac{1}{x} \), \(x \in [1,3]\), then \(c =\)
If\[ A = \begin{bmatrix} \cos\theta & -\sin\theta \\ -\sin\theta & -\cos\theta \\ \end{bmatrix} \] then \(A^{-1} =\)
If two moles of an ideal gas at $546\ \text{K}$ occupy a volume of $44.8\ \text{L}$, what is the pressure of ideal gas at $546\ \text{K}$? ($R = 0.0821\ \text{L atm mol}^{-1}\text{K}^{-1}$)
What is the type of hole occupied if limiting value of $\dfrac{r^+}{r^-}$ is in the range of $0.225$ to $0.414$ ?
The sum of oxidation number of all atoms in $\mathrm{S_2O_3^{2-}}$ ion is
What is the conductivity of 0.01 M NaCl solution if resistance and cell constant of NaCl solution are 375 ohms and $0.5\ \text{cm}^{-1}$ respectively at 298 K ?
