Aluminium reacts with concentrated HCl and concentrated NaOH to liberate which of the following gases respectively-

1. \(\mathrm{H}_2 ~\text{and} ~\mathrm{H}_2 \) 2. \(\mathrm{O}_2 ~\text{and} ~\mathrm{O}_2 \)
3. \(\mathrm{O}_2 ~\text{and} ~\mathrm{H}_2 \) 4. \(\mathrm{H}_2 ~\text{and} ~\mathrm{O}_2 \)

Subtopic:  Boron Family- Preparations, Properties & Uses |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Hydrogen will not reduce 

1. heated cupric oxide

2. heated ferric oxide

3. heated stannic oxide

4. heated aluminium oxide

Subtopic:  Anomalous Behaviour of B & C |
 54%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The basic structural unit of silicates is-

1. \( \mathrm{SiO}_4{}^{4-}\) 2. \(\left(\mathrm{SiO}_3\right)^{2-} \)
3. \(\mathrm{SiO}_4{ }^{2-} \) 4. \(\mathrm{SiO}^{-}\)
Subtopic:  Carbon Family - Preparations, Properties & Uses |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When silicon is boiled with caustic soda solution, the gas is evolved is-

1. O2

2. SiH4

3. H2

4. None of the above

Subtopic:  Properties of Structure of SiO2 & Other Compounds |
 70%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

An anion that cannot be formed by Boron is -

1. BF63-

2. BH4-

3. B(OH)4-

4. BO2-

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Identify the correct statements from the following:

a. \(\mathrm{CO}_2(\mathrm{~g})\) is used as a refrigerant ice cream and frozen food.
b. The structure of \(\mathrm{C}_{60} \)  customs12 six carbon rings and 25 five carbon rings
c. ZSM-5, a type of zeolite, is used to convert alcohol into gasoline.
d. CO is a colorless and odorless gas.
 
1. (a) and (c) only 2. (b) and (c) only
3. (c) and (d) only 4. (a), (c) and (d) only
Subtopic:  Carbon Family - Preparations, Properties & Uses | Compounds of Carbon, Preparations, Properties & Uses |
 57%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

B2H6 can't be prepared by -

1. NaBH4  + I2 

2. BF3  + NaH 

3. B3N3H6  + H2O 

4. Mg3B2 + dil HCl

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The most characteristic oxidation state for lead and tin is, respectively,:

1. +4, +2

2. +2, +4

3. +4, +4

4. +2, +2

Subtopic:  Properties of Glass, Pb & Sn compounds |
 75%
From NCERT
AIPMT - 2007
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

White fumes appear around the bottle of anhydrous AlCl3. This is due to -

1. Formation of Al(OH)3

2. Dimerisation of AlCl3

3. Hydrolysis of AlCl3 gives HCl gas

4. Adsorption of moisture 

Subtopic:  Boron Family- Preparations, Properties & Uses |
 75%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Catenation i.e., linking of similar atoms depends on the size and electronic configuration of atoms. The

the tendency of catenation in group 14 elements follows the order-

1.  C>Si>Ge>Sn

2.  C>>Si>GeSn

3.  Si>C>Sn>Ge

4.  Ge>Sn>Si>C

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh