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JEE Mains | PYQ

Given below are two statements:
Statement I : Nickle is being used as the catalyst for producing syn gas and edible fats.
Statement II : Silicon forms both electron rich and electron deficient hydrides.
In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements:
Statement I: Chlorine can easily combine with oxygen to form oxides: and the product has a tendency to explode.
Statement II: Chemical reactivity of an element can be determined by its reaction with oxygen and halogens.
In the light of the above statements, choose the correct answer from the options given below

The difference in the oxidation state of \( \mathrm{Xe} \) between the oxidized product of \( \mathrm{Xe} \) formed on complete hydrolysis of \( \mathrm{XeF_4} \) and \( \mathrm{XeF_4} \) is _______.

The oxidation state of phosphorus in hypophosphoric acid is \( +\_\_\_\_ \).

Element not present in Nessler’s reagent is:

The standard electrode potential of \( \mathrm{M}^+/\mathrm{M} \) in aqueous solution does not depend on.

Sum of $\pi-$ bond present in peroxodisulphuric acid and pyrosulphuric acid is:

The number of \( \mathrm{P-O-P} \) bonds in \( \mathrm{H_4P_2O_7} \), \( \mathrm{(HPO_3)_3} \) and \( \mathrm{P_4O_{10}} \) are respectively

$\text{Bond dissociation energy of “E-H” bond of the “H}_2\text{E” hydrides of group 16 elements (given below), follows order.}$
$\text{A. O}   \quad \text{B. S} \quad \text{C. Se} \quad \text{D. Te}$

“A” obtained by Ostwald’s method involving air oxidation of \( \mathrm{NH_3} \), upon further air oxidation produces “B”. “B” on hydration forms an oxoacid of Nitrogen along with evolution of “A”. The oxoacid also produces “A” and gives positive brown ring test. Identify A and B, respectively.

\( \mathrm{ClF_5} \) at room temperature is a:

Total number of acidic oxides among \( \mathrm{N_2O_3}, \mathrm{NO_2}, \mathrm{N_2O}, \mathrm{Cl_2O_7}, \mathrm{SO_2}, \mathrm{CO}, \mathrm{CaO}, \mathrm{Na_2O} \) and \( \mathrm{NO} \) is __________.

Match List I with List II:

Choose the correct answer from the options given below:

Which of the Phosphorus oxoacid can create silver mirror from \( \mathrm{AgNO_3} \) solution?

The correct group of halide ions which can be oxidised by oxygen in acidic medium is:

One mole of \( \text{P}_4 \) reacts with \( 8 \) moles of \( \text{SOCl}_2 \) to give \( 4 \) moles of \( A \), \( x \) mole of \( \text{SO}_2 \) and \( 2 \) moles of \( B \). \( A \), \( B \) and \( x \) respectively are:

Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [A] and [B] are respectively.

The ratio of sigma  and \( \pi \) bonds present in pyrophosphoric acid is______________.