25 mL of the given HCl solution requires 30 mL of 0.1M sodium carbonate solution. What is the volume of this HCl solution required to titrate 30 mL of 0.2M aqueous NaOH solution?
JEE WhatsApp Group
Sign in
Please select an account to continue using cracku.in
↓ →
JEE WhatsApp Group
Join Our JEE Preparation Group
Prep with like-minded aspirants; Get access to free daily tests and study material.
25 mL of the given HCl solution requires 30 mL of 0.1M sodium carbonate solution. What is the volume of this HCl solution required to titrate 30 mL of 0.2M aqueous NaOH solution?
Login to view the detailed solution.
The de Broglie wavelength $$(\lambda)$$ associated with a photoelectron varies with the frequency $$(\nu)$$ of the incident radiation as, [$$\nu_0$$ is threshold frequency]:
Login to view the detailed solution.
The correct option with respect to the Pauling electronegativity values of the elements is:
Login to view the detailed solution.
.webp)
The reaction $$MgO(s) + C(s) \to Mg(s) + CO(g)$$, for which $$\Delta H° = +491.1$$ kJ mol$$^{-1}$$ and $$\Delta S° = 198.0$$ JK$$^{-1}$$ mol$$^{-1}$$ is not feasible at 298 K. Temperature above which reaction will be feasible is
Login to view the detailed solution.
The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by $$\Delta G° = A - BT$$ where A and B are non-zero constants. Which of the following is true about this reaction?
Login to view the detailed solution.
For the equilibrium $$2H_2O \rightleftharpoons H_3O^+ + OH^-$$; the value of $$\Delta G°$$ at 298 K is approximately:
Login to view the detailed solution.
.webp)
Match the following items in column I with the corresponding items in column II.
Login to view the detailed solution.
The hydride that is NOT electron deficient is:
Login to view the detailed solution.
The relative stability of +1 oxidation state of group 13 elements follows the order
Login to view the detailed solution.
.webp)
Which of the following compounds reacts with ethylmagnesium bromide and also decolourizes bromine water solution?
Login to view the detailed solution.
Which of the following compounds will produce a precipitate with $$AgNO_3$$?
Login to view the detailed solution.
Taj Mahal is being slowly disfigured and discoloured. This is primarily due to
Login to view the detailed solution.
.webp)
The higher concentration of which gas in air can cause stiffness of flower buds?
Login to view the detailed solution.
The radius of the largest sphere which fits properly at the centre of the edge of a body centred cubic unit cell is: (Edge length is represented by 'a')
Login to view the detailed solution.
$$K_2HgI_4$$ is 40% ionised in aqueous solution. The value of its van't Hoff factor (i) is:
Login to view the detailed solution.
Given the equilibrium constant: $$K_C$$ of the reaction: $$Cu(s) + 2Ag^+(aq) \to Cu^{2+}(aq) + 2Ag(s)$$ is $$10 \times 10^{15}$$. Calculate the $$E°_{cell}$$ of this reaction at 298 K. [$$2.303 \frac{RT}{F}$$ at 298 K = 0.059 V]
Login to view the detailed solution.
The reaction $$2X \to B$$ is a zeroth order reaction. If the initial concentration of X is 0.2M, the half-life is 6 h. When the initial concentration of X is 0.5M, the time required to reach its final concentration of 0.2M will be
Login to view the detailed solution.
Among the colloids cheese (C), milk (M) and smoke (S), the correct combination of the dispersed phase and dispersion medium, respectively is:
Login to view the detailed solution.
The reaction that does NOT define calcination is:
Login to view the detailed solution.
$$A \xrightarrow{4KOH, O_2} 2B_{(Green)} + 2H_2O$$; $$B \xrightarrow{4HCl} 2C_{(Purple)} + MnO_2 + 2H_2O$$; $$2C \xrightarrow{H_2O, KI} 2A + KOH + D$$. In the above sequence of reactions, A and D, respectively, are:
Login to view the detailed solution.
The coordination number of Th in $$K_4[Th(C_2O_4)_4(H_2O)_2]$$ is: ($$C_2O_4^{2-}$$ = oxalato)
Login to view the detailed solution.
The number of bridging CO ligand(s) and Co-Co bond(s) in $$Co_2(CO)_8$$, respectively are:
Login to view the detailed solution.
The major product of the following reaction is:
Login to view the detailed solution.
The major product obtained in the following conversion is:
Login to view the detailed solution.
The major product obtained in the following reaction is:
Login to view the detailed solution.
In the following compound, the favourable site/s for protonation is/are:
Login to view the detailed solution.
A compound 'X' on treatment with Br$$_2$$/NaOH, provided $$C_3H_9N$$, which gives positive carbylamine test. Compound X' is:
Login to view the detailed solution.
The homopolymer formed from 4-hydroxy-butanoic acids is:
The correct match between Item I and Item II is:
Login to view the detailed solution.
The correct match between Item I and Item II is:
Educational materials for JEE preparation
Share