>
Exams
>
Chemistry
>
The p Block Elements
>
statement i boron does not exhibit allotropy state
Question:
Statement I: Boron does not exhibit allotropy
Statement II: Boron is extremely hard and black coloured solid
Show Hint
Allotropy is common in elements like carbon, sulfur, and boron — be cautious with such general statements.
AP EAPCET - 2023
AP EAPCET
Updated On:
May 15, 2025
Both I \& II are correct
Both I \& II are not correct
I is correct but II is not correct
I is not correct but II is correct
Hide Solution
Verified By Collegedunia
The Correct Option is
D
Solution and Explanation
Statement I is incorrect: Boron does exhibit allotropy (e.g., crystalline and amorphous forms).
Statement II is correct: Crystalline boron is extremely hard and appears black in color.
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on The p-Block Elements
Which of the following set of Oxides is not correctly matched?
TS EAMCET - 2025
Chemistry
The p-Block Elements
View Solution
The correct order of atomic radii of Al, Ga, In, Tl is
TS EAMCET - 2025
Chemistry
The p-Block Elements
View Solution
Identify the number of metalloids from the following: Sb, Be, P, Ge, Te, S, Cs, Tc, I
TS EAMCET - 2025
Chemistry
The p-Block Elements
View Solution
The reaction/s which represent the production of diborane on an industrial scale is/are:
I. 4BF$_3$ + 3LiAlH$_4$ → 2B$_2$H$_6$ + 3LiF + 3AlF$_3$
II. 2NaBH$_4$ + I$_2$ → B$_2$H$_6$ + 2NaI + H$_2$
III. 2BF$_3$ + 6NaH → B$_2$H$_6$ + 6NaF
TS EAMCET - 2025
Chemistry
The p-Block Elements
View Solution
Correct statements regarding halides of group 14 elements:
I. Stability of dihalides: SiX$_2$ > GeX$_2$ > SnX$_2$ > PbX$_2$
II. SnF$_4$, PbF$_4$ are ionic
III. PbI$_4$ does not exist
TS EAMCET - 2025
Chemistry
The p-Block Elements
View Solution
View More Questions
Questions Asked in AP EAPCET exam
In a series LCR circuit, the voltages across the capacitor, resistor, and inductor are in the ratio 2:3:6. If the voltage of the source in the circuit is 240 V, then the voltage across the inductor is
AP EAPCET - 2025
Electromagnetic induction
View Solution
0.25 moles of $ \text{CH}_2\text{FCOOH} $ was dissolved in $ 0.5 \, \text{kg} $ of water. The depression in freezing point of the resultant solution was observed as $ 1^\circ \text{C} $. What is the van't Hoff factor? ($ K_f = 1.86 \, \text{K kg mol}^{-1} $)
AP EAPCET - 2025
Colligative Properties
View Solution
At $T(K)$, the vapor pressure of water is $x$ kPa. What is the vapor pressure (in kPa) of 1 molal solution containing non-volatile solute?
AP EAPCET - 2025
Colligative Properties
View Solution
At 300 K, vapour pressure of pure liquid A is 70 mm Hg. It forms an ideal solution with liquid B. Mole fraction of B = 0.2 and total vapour pressure of solution = 84 mm Hg. What is vapour pressure (in mm) of pure B?
AP EAPCET - 2025
Colligative Properties
View Solution
A 1% (w/v) aqueous solution of a certain solute is isotonic with a 3% (w/v) solution of glucose (molar mass 180 g mol$^{-1}$). The molar mass of solute (in g mol$^{-1}$) is
AP EAPCET - 2025
Colligative Properties
View Solution
View More Questions