NTA JEE Main 27th July 2022 Shift 2

In the above reaction,5 g of toluene is converted into benzaldehyde with 92% yield. The amount of benzaldehyde produced is _____ $$\times 10^{-2}$$ g

The number of molecule(s) or ion(s) from the following having non-planar structure is ______.
$$NO_3^-$$, $$H_2O_2$$, $$BF_3$$, $$PCl_3$$, $$XeF_4$$, $$SF_4$$, $$XeO_3$$, $$PH_4^+$$, $$SO_3$$, $$[Al(OH)_4]^-$$

For a real gas at $$25^\circ C$$ temperature and high pressure (99 bar) the value of compressibility factor is 2, so the value of Van der Waal's constant 'b' should be _____ $$\times 10^{-2}$$ L mol$$^{-1}$$. (Given $$R = 0.083$$ L bar K$$^{-1}$$ mol$$^{-1}$$)

A gas (Molar mass = 280 g mol$$^{-1}$$) was burnt in excess $$O_2$$ in a constant volume calorimeter and during combustion the temperature of calorimeter increased from 298.0 K to 298.45 K. If the heat capacity of calorimeter is 2.5 kJ K$$^{-1}$$ and enthalpy of combustion of gas is 9 kJ mol$$^{-1}$$ then amount of gas burnt is _____ g.

The normality of $$H_2SO_4$$ in the solution obtained on mixing 100 mL of 0.1 M $$H_2SO_4$$ with 50 mL of 0.1 M NaOH is _____ $$\times 10^{-1}$$ N.

When a certain amount of solid A is dissolved in 100 g of water at $$25^\circ C$$ to make a dilute solution, the vapour pressure of the solution is reduced to one-half of that of pure water. The vapour pressure of pure water is 23.76 mmHg. The number of moles of solute A added is

$$[A] \xrightarrow{} [B]$$
Reactant $$\to$$ Product
If formation of compound [B] follows the first order of kinetics and after 70 minutes the concentration of [A] was found to be half of its initial concentration. Then the rate constant of the reaction is $$x \times 10^{-6} s^{-1}$$. The value of $$x$$ is ____

Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores of iron is

The oxidation state of manganese in the product obtained in a reaction of potassium permanganate and hydrogen peroxide in basic medium is

The spin only magnetic moment of the complex present in Fehling's reagent is _____ B.M. (Round off your answer to the nearest integer)