CUET · CHEMISTRY · PYQ PAPER 2024
The number of moles of electrons produced in the oxidation of 67.2 L of H 2 at STP is:
- A 2 moles
- B 4 moles
- C 1 mole
- D 6 moles
Answer & Solution
Correct Answer
(D) 6 moles
Step-by-step Solution
Detailed explanation
\( n_{e^-} = \frac{V_{H_2}}{V_m} \times 2 \) \( n_{e^-} = \frac{67.2 \text{ L}}{22.4 \text{ L/mol}} \times 2 = 6 \text{ mol} \)
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
- Match List-l with List-II
Choose the correct answer from the options given below :List-l List-II A. Methyl alcohol I. Highly poisonous B. Ethyl alcohol II. Carbolic acid C. Phenol III. Highly soluble in water D. Picric acid IV. Turns blue litmus red CUET 2023 Hard - Osmotic pressure measurements are less accurate and difficult to carry out. Therefore, this method is not useful for measuring molecular weights. But it is used to find out molecular weights of polymers eg. plastics, proteins and starch having many monomer units. Knowing the value of osmotic pressure of a given solution, molecular weight of the solute can be calculated using Van't Hoff equation.
Determine the Molarity of a solution containing 4g of NaOH in 1L solutionCUET 2023 Easy - Which of the following is the correct statement for hybridization of C-atom and number of \(\sigma\) and \(\pi\) bonds in the Carbonyl group?CUET 2023 Medium
- Match List-l with List-II
Choose the correct answer from the options given below :List-l (Property) List-II (Unit) (A) Cell constant (I) \(cm ^{-1}\) (B) Molar conductance (II) \(ohm ^{-1} cm^2 mol^{-1}\) (C) Specific conductance (III) \(ohm ^{-1} cm^{-1}\) (D) Conductance (IV) \(ohm ^{-1}\) CUET 2025 Easy - Which of following statement(s) are correct for Glucose ?
(A) Glucose is a monosaccharide sugar
(B) Glucose is an aldohexose and is also known as dextrose.
(C) Glucose can be hydrolyzed.
(D) Glucose is a reducing sugar.
Choose the correct answer from the options given below:CUET 2025 Hard - The dehydration of alcohol follows the order :CUET 2023 Medium
More PYQs from CUET
- In a semiconductor, there are :
(A) no free electrons at any temperature
(B) no free electrons at 0 K
(C) number of free electrons increase with temperature
(D) number of free electrons decrease with temperature
Choose the correct answer from the options given below:CUET 2023 Easy - Mr. \(X\) wishes to purchase a house for ₹ \(\ 14,51,400\) from a bank and decided to repay the loan by equal monthly installments (EMI) in \(10\) years. If bank charges interest at 9 % per annum compounded monthly, then the EMI is:
[Given that \((1.0075)^{120}=2.4514\) ]CUET 2025 Easy - If \(\vec{a} \cdot \vec{b}=\vec{a} \cdot \vec{c}, \vec{a} \times \vec{b}=\vec{a} \times \vec{c}\) and \(\vec{a} \neq \overrightarrow{0}\), then the vector \(\vec{b}\) is equal to:CUET 2025 Hard
- Match List-l with List-ll:
Choose the correct answer from the options given below:List-l (Representation) List-II (Common name) (A) \(10^{-6} M\) solution (I) Decimolar solution (B) 0.1 M solution (II) Micromolar solution (C) 0.001 M solution (III) Millimolar solution (D) 0.01 M solution (IV) Centimolar solution CUET 2025 Medium - If \(A\) is square matrix of order \(3 \times 3\) and \(|\operatorname{adj} A|=64\), then the value of \(|5 A|\) isCUET 2025 Easy
- In p-type semiconductors, the conductivity is due to:CUET 2023 Easy