enEnglishhiहिन्दी
JEE Mains · Chemistry · STD 11 -p-Block elements - I
Which one of the following is an oxide ?
- A \(KO_2\)
- B \(BaO_2\)
- C \(SiO_2\)
- D \(CsO_2\)
Answer & Solution
Correct Answer
(C) \(SiO_2\)
Step-by-step Solution
Detailed explanation
Compound nature \(KO_2\) Superoxide \(BaO_2\) Peroxide \(SiO_2\) Oxide \(CsO_2\) Superoxide
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
- When a certain amount of solid \(A\) is dissolved in \(100\,g\) of water at \(25^{\circ}\,C\) to make a dilute solution, the vapour pressure of the solution is reduced to one-half of that of pure water. The vapour pressure of pure water is \(23.76\,mm\,Hg\). The number of moles of solute \(A\) added is \(...........\) (Nearest Integer)JEE Mains 2022 Medium
- Consider the following reaction \(\mathrm{A}+\mathrm{B} \rightarrow \mathrm{C}\) The time taken for \(A\) to become \(1 / 4^{\text {th }}\) of its inital concentration is twice the time taken to become \(1 / 2\) of the same. Also, when the change of concentration of \(B\) is plotted against time, the resulting graph gives a straight line with a negative slope and a positive intercept on the concentration axis. The overall order of the reaction is _______.JEE Mains 2024 Medium
- The sum of oxidation state of the metals in \(Fe ( CO )_5, VO ^{2+}\) and \(WO _3\) is \(.........\).JEE Mains 2023 Medium
- In the given pentapeptide, find out an essential amino acid (Y) and the sequence present in the pentapeptide:
Choose the correct answer from the options givenbelow:JEE Mains 2026 Hard - In an oligopeptide named Alanylglycylphenyl alanyl isoleucine, the number of \(sp ^2\) hybridised carbons is \(...........\).JEE Mains 2023 Hard
- The electron in the \(n ^{\text {th }}\) orbit of \(Li ^{2+}\) is excited to \((n+1)\) orbit using the radiation of energy \(1.47 \times 10^{-17}\,J\) (as shown in the diagram). The value of \(n\) is \(....\).Given \(R_H=2.18 \times 10^{-18}\,J\)
JEE Mains 2023 Medium
More PYQs from JEE Mains
- Let \(\vec{a}=\hat{i}+\hat{j}+2 \hat{k}, \vec{b}=2 \hat{i}-3 \hat{j}+\hat{k}\) and \(\overrightarrow{ c }=\hat{ i }-\hat{ j }+\hat{ k }\) be three given vectors. Let \(\vec{v}\) be a vector in the plane of \(\vec{a}\) and \(\overrightarrow{ b }\) whose projection on \(\overrightarrow{ c }\) is \(\frac{2}{\sqrt{3}}\). If \(\overrightarrow{ v } . \hat{ j }=7\), then \(\overrightarrow{ v } \cdot(\hat{ i }+\hat{ k })\) is equal toJEE Mains 2022 Medium
- The sum of the real values of \(x\) for which the middle term in the binomial expansion of \({\left( {\frac{{{x^3}}}{3} + \frac{3}{x}} \right)^8}\) equals \(5670\) isJEE Mains 2019 Hard
- Let \(S_{n}=1 \cdot(n-1)+2 \cdot(n-2)+3 \cdot(n-3)+\ldots+\) \((\mathrm{n}-1) \cdot 1, \mathrm{n} \geq 4\) The sum \(\sum_{n=4}^{\infty}\left(\frac{2 S_{n}}{n !}-\frac{1}{(n-2) !}\right)\) is equal to :JEE Mains 2021 Hard
- Two charges, each equal to \(q\), are kept at \(x = -a\) and \(x = a\) on the \(x-\)axis. A particle of mass \(m\) and charge \(q_0=\frac{q}{2}\) is placed at the origin. If charge \(q_0\) is given a small displacement \((y < < a)\) along the \(y-\)axis, the net force acting on the particle is proportional toJEE Mains 2013 Medium
- Let \(\mathrm{y}=\mathrm{y}(\mathrm{x})\) be a solution of the differential equation, \(\sqrt{1-\mathrm{x}^{2}} \frac{\mathrm{dy}}{\mathrm{dx}}+\sqrt{1-\mathrm{y}^{2}}=0,|\mathrm{x}|<1\) If \(\mathrm{y}\left(\frac{1}{2}\right)=\frac{\sqrt{3}}{2},\) then \(\mathrm{y}\left(\frac{-1}{\sqrt{2}}\right)\) is equal toJEE Mains 2020 Hard
- Assuming the nitrogen molecule is moving with \(r.m.s.\) velocity at \(400\, K\), the de\(-\)Broglie wavelength of nitrogen molecule is close to\(......\mathring {A}\) (Given : nitrogen molecule weight : \(4.64 \times 10^{-26}\, kg ,\) Boltzman constant : \(1.38 \times 10^{-23}\, J / K ,\) Planck constant : \(\left.6.63 \times 10^{-34}\, J . s \right)\)JEE Mains 2020 Hard