JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
Combustion of glucose \(\left(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\right)\) produces \(\mathrm{CO}_2\) and water. The amount of oxygen (in \(\mathrm{g}\) ) required for the complete combustion of \(900 \mathrm{~g}\) of glucose is _______. [Molar mass of glucose in \(\mathrm{g} \mathrm{mol}^{-1}=180\) ]
- A \(480\)
- B \(960\)
- C \(800\)
- D \(32\)
Answer & Solution
Correct Answer
(B) \(960\)
Step-by-step Solution
Detailed explanation
Balanced equation: C6H12O6 + 6O2 → 6CO2 + 6H2O Molar mass of glucose = (6×12 + 12×1 + 6×16) = 180 g 180 g glucose requires 6×32 = 192 g O2 900 g glucose = (900/180) = 5 moles O2 required = 5×192 = 960 g
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
- Choose the halogen which is most reactive towards \(SN1\) reaction in the given compounds \((A, B, C , D)\)
JEE Mains 2023 Medium - Choose the correct option for the following reactions.
JEE Mains 2022 Medium - Consider the following statements related to temperature dependence of rate constants.
Identify the correct statements,
A. The Arrhenius equation holds true only for an elementary homogenous reaction.
B. The unit of A is same as that of k in Arrhenius equation.
C. At a given temperature, a low activation energy means a fast reaction.
D. A and Ea as used in Arrhenius equation depend on temperature.
E. When \(\mathrm{Ea} \gg \mathrm{RT}\). A and Ea become interdependent.
Choose the correct answer from the options given below :JEE Mains 2025 Medium - Given below are some statements about Mn and \(Mn_{2}O_{7}\). Identify the correct statements:
A. Mn forms the oxide \(Mn_{2}O_{7}\) in which Mn is in its highest oxidation state.
B. Oxygen stabilizes the Mn in higher oxidation states by forming multiple bonds with Mn
C. \(Mn_{2}O_{7}\) is an ionic oxide.
D. The structure of \(Mn_{2}O_{7}\) consists of one bridged oxygen.
Choose the correct answer from the options given below :JEE Mains 2026 Hard - \(Ph - CH = CH _2 \xrightarrow[ HBr ]{( PhCOO )_2}\) Product
Consider the above reaction
A. The reaction proceeds through a more stable radical intermediate.
B. The role of peroxide is to generate \(\dot{ H }\) (Hydrogen radical).
C. During this reaction, benzene is formed as a biproduct.
D. 1-Bromo-2-phenylethane is fanned as the minor product.
E. The same reaction in absence of peroxide proceeds via carbocation intermediate.
Identify the correct statements. Choose the correct answer from the options given below:JEE Mains 2026 Easy - Glycerol is separated in soap industries byJEE Mains 2020 Medium
More PYQs from JEE Mains
- In a hydrogen like atom, when an electron jumps from the \(M -\) shell to the \(L-\) shell the wavelength of emitted radiation is \(\lambda \). If an electron jumps from \(N-\) shell to the \(L-\) shell the wavelength of emitted radiation will beJEE Mains 2019 Medium
- Let \(A\,(4, -4)\) and \(B\,(9,6)\) be points on the parabola \(y^2 = 4x\) . Let \(C\) be chosen on the arc \(AOB\) of the parabola, where \(O\) is the origin, such that the area of \(\Delta ACB\) is maximum. Then, the area (in sq. units) of \(\Delta ACB,\) isJEE Mains 2019 Hard
- If \(\mu_0\) and \(\varepsilon_0\) are the permeability and permittivity of free space, respectively, then the dimension of \(\left(\frac{1}{\mu_0 \varepsilon_0}\right)\) is :JEE Mains 2025 Easy
- The element that shows greater ability to form \(p\pi - p\pi \) multiple bonds, isJEE Mains 2019 Medium
- Let \( \alpha \) and \( \beta \) respectively be the maximum and the minimum values of the function \( f(\theta)=4(\sin^{4}(\frac{7\pi}{2}-\theta)+\sin^{4}(11\pi+\theta)) - 2(\sin^{6}(\frac{3\pi}{2}-\theta)+\sin^{6}(9\pi-\theta)) \), \(\theta \in R\). Then \( \alpha+2\beta \) is equal to:JEE Mains 2026 Medium
- Consider the graph of \(G i b b s\) free energy \(G\) vs Extent of reaction. The number of statement/s from the following which are true with respect to points \((a), (b)\) and \((c)\) is \(.................\) \(A.\)Reaction is spontaneous at \((a)\) and \((b)\) \(B.\)Reaction is at equilibrium at point \((b)\) and nonspontaneous at point \((c)\) \(C.\)Reaction is spontaneous at \((a)\) and nonspontaneous at \((c)\) \(D.\)Reaction is non-spontaneous at \((a)\) and \((b)\)
JEE Mains 2023 Medium