JEE Main 2023 (Online) 11th April Evening Shift | p-Block Elements Question 44 | Chemistry

1

JEE Main 2023 (Online) 11th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

One mole of $$\mathrm{P}_{4}$$ reacts with 8 moles of $$\mathrm{SOCl}_{2}$$ to give 4 moles of $$\mathrm{A}, x$$ mole of $$\mathrm{SO}_{2}$$ and 2 moles of $$\mathrm{B} . \mathrm{A}, \mathrm{B}$$ and $$x$$ respectively are :

A

$$\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}$$ and 4

B

$$\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}$$ and 4

C

$$\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}$$ and 2

D

$$\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}$$ and 2

2

JEE Main 2023 (Online) 11th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

For compound having the formula $$\mathrm{GaAlCl}_{4}$$, the correct option from the following is :

A

$$\mathrm{Cl}$$ forms bond with both $$\mathrm{Al}$$ and $$\mathrm{Ga}$$ in $$\mathrm{GaAlCl}_{4}$$

B

Oxidation state of $$\mathrm{Ga}$$ in the salt $$\mathrm{GaAlCl}_{4}$$ is +3 .

C

$$\mathrm{Ga}$$ is coordinated with $$\mathrm{Cl}$$ in $$\mathrm{GaAlCl}_{4}$$

D

$$\mathrm{Ga}$$ is more electronegative than $$\mathrm{Al}$$ and is present as a cationic part of the salt $$\mathrm{GaAlCl}_{4}$$

3

JEE Main 2023 (Online) 6th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List I with List II

	LIST I Name of reaction		LIST II Reagent used
A.	Hell-Volhard-Zelinsky reaction	I.	$$NaOH + {I_2}$$
B.	Iodoform reaction	II.	(i) $$Cr{O_2}C{l_2},C{S_2}$$ (ii) $${H_2}O$$
C.	Etard reaction	III.	(i) $$B{r_2}$$ / red phosphorus (ii) $$H_2O$$
D.	Gatterman-Koch reaction	IV.	$$CO,HCl,$$, anhyd. $$AlC{l_3}$$

Choose the correct answer from the options given below:

A

A-III, B-I, C-IV, D-II

B

A-III, B-I, C-II, D-IV

C

A-I, B-II, C-III, D-IV

D

A-III, B-II, C-I, D-IV

4

JEE Main 2023 (Online) 1st February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

The correct order of bond enthalpy ($$\mathrm{kJ~mol^{-1}}$$) is :

A

$$\mathrm{C-C > Si-Si > Sn - Sn > Ge-Ge}$$

B

$$\mathrm{Si-Si > C-C > Ge-Ge > Sn-Sn}$$

C

$$\mathrm{C-C > Si-Si > Ge-Ge > Sn-Sn}$$

D

$$\mathrm{Si-Si > C-C > Sn-Sn > Ge-Ge}$$