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Among the following most reactive metal is

What do you understand by exothermic reaction and endothermic reaction? Give one example of each type.

1. 4.5

Using
the standard electrode potentials given in Table 3.1, predict if the
reaction between the following is feasible:

(i)
Fe³⁺(aq)
and I⁻(aq)

(ii)
Ag⁺
(aq) and Cu(s)

(iii)
Fe³⁺
(aq) and Br⁻ (aq)

(iv)
Ag(s) and Fe³⁺
(aq)

(v)
Br₂
(aq) and Fe²⁺
(aq).

A catalyst

Which of the following compounds has wrong IUPAC name

Name the reagents used in the following reactions
Oxidation of a primary alcohol to carboxylic acid.

Oxidation of a primary alcohol to aldehyde

Bromination of phenol to 2, 4, 6 - tribromophenol

Benzyl alcohol to benzoic acid

Dehydration of propan-2-ol to propene

Butan-2-one to butan-2-ol

At 298K 1 atm, 1 volume of N₂ reacts with 3 volumes of H₂ to give 2 volumes of NH₃. The ratio 1:3:2 illustrates:

Acid on reaction with alcohol form ester, this reaction is called esterification. Esterification may be intermolecular or intramolecular. Select the compound which will not show esterification reaction with $H^{+}\Delta$.

Which is(are) true about $N_2{O}_5$?

For adsorption of gas on solid surface, the plots of log $\frac{x}{m}$ vs log P is linear with a slope equal to-

For a reaction X $\to$ Y, the rate of the reaction has been found to be third order with respect to X. What happens when the concentration of X is doubled.

Hybridisation of singlet carbene is:

A mixture of gases contains $H_2$ and $O_2$ gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?

What is the concentration of $C{O}_3^{2-}$ in a $0.1MN{a}_{2}C{O}_3$ solution after the hydrolysis reactions have come to an equilibrium? ($K_a\left(HC{O}_3^{-}\right)=4.7\times {10}^{-11}$)

Which one of the following compounds has 2 lone pairs?

Which of the following is not an oxoacid of chlorine?

Hanny - Smith formula for calculating the percentage of ionic character is

In the following compounds, write the correct $K_a$ order.

While $F{e}^{3+}$ is stable, $M{n}^{3+}$ is not stabe in acid solution because:
$(M{n}^{3+}+e^{-}\to M{n}^{2+},E^{\circ }=1.5V;O_2+4H^{+}+4e^{-}\to 2H_{2}O,E^{\circ }=+1.23V;F{e}^{3+}+e^{-}\to F{e}^{2+},E^{\circ }=0.77V)$

In a sample of hydrogen atoms, transition of electrons take place from the $5^{th}$ excited state to the ground state producing all possible types of photons. The number of lines in the infrared region is:

During the electrolysis of an aqueous solution of $NaCl,10.3g$ of chlorine was liberated at STP. Calculate the volume of hydrogen that would be liberated at ${20}^{o}C$ and $740mmofHg$ pressure from acidulated water, when the same quantity of current as that used in the electrolysis of $NaCl$ was passed.

The compound having eight carbons is known as:

$P–O–P$ bond is present in which of the following acids:

Thermal neutrons are those which