Assertion (A): [SiF6]2– is known whereas [SiCl6]2– is not.
Reason (R):
Cl atom causes higher steric hindrance.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true and R is not the correct explanation of A.
3. A is true but R is false
4. A is false but R is true

Subtopic:  Properties of Structure of SiO2 & Other Compounds |
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Assertion(A): Boric acid is considered a weak acid.
Reason(R): Boric acid is not able to release H+ ions on its own.

1. Both assertion and reason are true, and the reason is the correct explanation of the assertion.

2. Both assertion and reason are true, but the reason is not the correct explanation of the assertion.

3. Assertion is true but the reason is false.

4. Assertion is false but the reason is true

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
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Consider the following statements

i. Carbon form most acidic dioxide among the oxide of group 14.

ii.  Pb mostly found in +2 oxidation state

iii. Only silicon used as semiconductor

Identify the correct statement(s):

1. Only iii

2. i, ii

3. ii, iii

4. Only ii

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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The correct statements among I to III regarding group 13 element oxides are:
(I) Boron trioxide or diboron trioxide is acidic.
(II) Oxides of aluminium and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.
1. (I) and (II) only
2. (I) and (III) only
3. (II) and (III) only
4. (I), (II), and (III) only

Subtopic:  Boron Family- Preparations, Properties & Uses |
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Assertion(A): Silicones are hydrophobic in nature.
Reason(R): Si–O–Si linkages are moisture sensitive.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Properties of Structure of SiO2 & Other Compounds |
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Assertion: SnO is a more reactive acid than SnO2.
Reason: Both SnO and SnO2 are amphoteric oxides.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false
4. (A) is false but (R) is true.

Subtopic:  Properties of Glass, Pb & Sn compounds |
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Given below are two statements:

Statement I: Both carbon and silicon atoms belong to group 14, both CO2 and SiO2 are gases and linear molecules.
Statement II: Being electron deficient due to incomplete octet of the central atom, both BCl3 and AlCl3 behave as Lewis acids.

1.  Both statement I and statement II are true
2.  Both statement I and statement II are false
3.  Statement I is correct but statement II is false
4.  Statement I is incorrect but statement II is true
Subtopic:  Boron Family- Preparations, Properties & Uses | Properties of Structure of SiO2 & Other Compounds |
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Which of the following statements are not correct?
A. BeSO4 and MgSO4 are insoluble in water
B. Magnesium is the central metal atom in chlorophyll
C. Pb4+ acts as an oxidizing agent
D. The study of only emission, not absorption spectra is referred as spectroscopy
E. Diborane is prepared by treating BF3 with LiAlH4
Choose the correct answer from the options given below
1. B and E only
2. B, C and E only
3. A and D only
4. B and D only

Subtopic:  Compounds of Boron- Preparations, Properties & Uses | Properties of Glass, Pb & Sn compounds |
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Assertion (A): CCl4 is insoluble in water while SiCl4 is soluble in water
Reason (R): Si in SiCl4 can accommodate the lone pair of electrons in d-orbitals obtained from oxygen atom of water molecules

1. Both A and R are correct and R is the correct explanation of A
2. Both A and R are correct but R is not the correct explanation of A
3. A is correct but R is not correct
4. A is not correct but R is correct
Subtopic:  Properties of Structure of SiO2 & Other Compounds |
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One group of elements in the periodic table contains, in descending order, boron, aluminium, gallium, indium and thallium. Which of the following are correct about these elements?

a. Indium forms the oxide ${\mathrm{In}}_{2}{\mathrm{O}}_{3}$

b. Boron is the least reactive element in the group

c. Gallium forms the sulphate ${\mathrm{GaSO}}_{4}$

1. a only

2. a and b

3. a and c

4. b and c

Subtopic:  Boron Family- Preparations, Properties & Uses |
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