The addition of dilute NaOH to Cr³⁺ salt solution will give :

Given below are two statements :

Statement I : Ethyl pent-4-yn-oate on reaction with CH₃MgBr gives a 3$$^\circ$$-alcohol.

Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH₃MgBr.

In the light of the above statements, choose the most appropriate answer from the options given below :

The compound/s which will show significant intermolecular H-bonding is/are :

Which one of the following reactions will not yield propionic acid?

The correct order of ionic radii for the ions, P^3$$-$$, S^2$$-$$, Ca²⁺, K⁺, Cl^$$-$$ is :

Which one of the following is the major product of the given reaction?

The major product (A) formed in the reaction given below is :

The major product of the following reaction, if it occurs by S_N2 mechanism is :

Potassium permanganate on heating at 513 K gives a product which is :

Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent?

Hydrolysis of sucrose gives :

The correct structures of A and B formed in the following reactions are :

The first order rate constant for the decomposition of CaCO₃ at 700 K is 6.36 $$\times$$ 10^$$-$$3s^$$-$$1 and activation energy is 209 kJ mol^$$-$$1. Its rate constant (in s^$$-$$1) at 600 K is x $$\times$$ 10^$$-$$6. The value of x is ___________. (Nearest integer)

[Given R = 8.31 J K^$$-$$ mol^$$-$$1; log 6.36 $$\times$$ 10^$$-$$3 = $$-$$2.19, 10^$$-$$4.79 = 1.62 $$\times$$ 10^$$-$$5]

The number of optical isomers possible for [Cr(C₂O₄)₃]^3$$-$$ is ____________.

Two flasks I and II shown below are connected by a valve of negligible volume.


When the valve is opened, the final pressure of the system in bar is x $$\times$$ 10^$$-$$2. The value of x is __________. (Integer answer)

[Assume - Ideal gas; 1 bar = 10⁵ Pa; Molar mass of N₂ = 28.0 g mol^$$-$$1; R = 8.31 J mol^$$-$$1 K^$$-$$1]

100 g of propane is completely reacted with 1000 g of oxygen. The mole fraction of carbon dioxide in the resulting mixture is x $$\times$$ 10^$$-$$2. The value of x is ____________. (Nearest integer)

[Atomic weight : H = 1.008; C = 12.00; O = 16.00]

40 g of glucose (Molar mass = 180) is mixed with 200 mL of water. The freezing point of solution is __________ K. (Nearest integer) [Given : K_f = 1.86 K kg mol^$$-$$1; Density of water = 1.00 g cm^$$-$$3; Freezing point of water = 273.15 K]

The resistance of a conductivity cell with cell constant 1.14 cm^$$-$$1, containing 0.001 M KCl at 298 K is 1500 $$\Omega$$. The molar conductivity of 0.001 M KCl solution at 298 K in S cm² mol^$$-$$1 is ____________. (Integer answer)

The number of photons emitted by a monochromatic (single frequency) infrared range finder of power 1 mW and wavelength of 1000 nm, in 0.1 second is x $$\times$$ 10¹³. The value of x is _____________. (Nearest integer)

(h = 6.63 $$\times$$ 10^$$-$$34 Js, c = 3.00 $$\times$$ 10⁸ ms^$$-$$1)

When 5.1 g of solid NH₄HS is introduced into a two litre evacuated flask at 27$$^\circ$$C, 20% of the solid decomposes into gaseous ammonia and hydrogen sulphide. The K_p for the reaction at 27$$^\circ$$C is x $$\times$$ 10^$$-$$2. The value of x is _____________. (Integer answer) [Given R = 0.082 L atm K^$$-$$1 mol^$$-$$]

The number of species having non-pyramidal shape among the following is ___________.

(A) SO₃

(B) NO$$_3^ - $$

(C) PCl₃

(D) CO$$_3^{2 - }$$

Data given for the following reaction is as follows :

FeO_(s) + C_(graphite) $$\to$$ Fe_(s) + CO_(g)

Substance	$$\Delta H^\circ $$ (kJ mol$$^{ - 1}$$)	$$\Delta S^\circ $$ (J mol$$^{ - 1}$$ K$$^{ - 1}$$)
$$Fe{O_{(s)}}$$	$$ - 266.3$$	57.49
$${C_{(graphite)}}$$	0	5.74
$$F{e_{(s)}}$$	0	27.28
$$C{O_{(g)}}$$	$$ - 110.5$$	197.6

The minimum temperature in K at which the reaction becomes spontaneous is ___________. (Integer answer)