AP EAMCET · Chemistry · p Block Elements (Group 13 & 14)
Identify the correct sets
i. Boron fibres - bullet proof vest
ii. Metal borides - protective shields
iii. Borax - glass wool
Correct option is
- A i, ii only
- B i, ii, iii
- C i, iii only
- D ii, iii only
Answer & Solution
Correct Answer
(B) i, ii, iii
Step-by-step Solution
Detailed explanation
Boron fibres are used for making bullet-proof vests metal borides used as protective shield because it has the capacity to absorb neutrons. Borates are used in a range of glass and glass product where they increase the meachanical strength of glass.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The number of radial nodes, angular nodes of a orbital are respectivelyAP EAMCET 2022 Medium
- Reduction of nitrobenzene with \(\mathrm{Zn}\) and alcoholic \(\mathrm{KOH}\) solution results in the formation of the following compoundAP EAMCET 2010 Hard
- Assertion (A): Carboxylic acids are more acidic than Phenols
Reason (R): Resonance structures of carboxylate ion are equivalent, while resonance structures of phenoxide ion are not equivalentAP EAMCET 2024 Hard - In neutral or faintly alkaline medium, \(\mathrm{MnO}_4^{-}\)oxidizes \(\mathrm{I}^{-}\)to iodate. What is the volume (in \(\mathrm{L}\) ) of \(0.02 \mathrm{M} \mathrm{KMnO}_4\) required to completely convert \(1 \mathrm{~L}\) of \(0.5 \mathrm{M} \mathrm{KI}\) solution to iodate in neutral or faintly alkaline medium?AP EAMCET 2023 Medium
- Identify the correct statements from the following
I. \(\Delta_{\mathrm{r}} \mathrm{G}\) is zero for \(\mathrm{A} \rightleftharpoons \mathrm{B}\) reaction
II. The entropy of pure crystalline solids approaches zero as the temperature approaches absolute zero
III. \(\Delta U\) of a reaction can be determined using bomb calorimeterAP EAMCET 2024 Medium - Strongest conjugate base among the following isAP EAMCET 2020 Easy
More PYQs from AP EAMCET
- The radius of the bore of a capillary tube is \(r\) and the angle of contact of the liquid is \(\theta\). When the tube is dipped in the liquid, the radius of curvature of the meniscus of liquid rising in the tube isAP EAMCET 2020 Hard
- If \(\int \frac{5 \tan \mathrm{x}}{\tan \mathrm{x}-2} \mathrm{dx}=\mathrm{ax}+\mathrm{b} \log |\sin \mathrm{x}-2 \cos \mathrm{x}|+\mathrm{c}\), then \(\mathrm{a}+\mathrm{b}=\)AP EAMCET 2025 Medium
- A codon has a sequence of \(\underline{A}\), and specifies a particular \(\underline{B}\) that is to be incorporated into a \(\underline{C}\). What are \(\underline{A}, \underline{B}, \underline{C}\) ?
\(\underline{A} \quad \underline{B} \quad \underline{C}\)AP EAMCET 2009 Medium - If \(\mathrm{A}(\cos \alpha, \sin \alpha), \mathrm{B}(\sin \alpha,-\cos \alpha), \mathrm{C}(1,2)\) are the vertices of a \(\triangle \mathrm{ABC}\) then the locus of its centroid isAP EAMCET 2025 Medium
- The maximum number of electrons present in an orbital with isAP EAMCET 2022 Easy
- The solution of the differential equation \(e^x y d x+e^x d y+x d x=0\) isAP EAMCET 2024 Easy