CUET · CHEMISTRY · PYQ PAPER 2024
Arrange the following in decreasing order of the number of molecules contained in:
(A) \(1 6 ~ g\) of \(O _2\)
(B) \(1 6 ~ g\) of \(CO _2\)
(C) \(1 6 ~ g\) of \(CO ^{-}\)
(D) \(16 g of H _2\)
Choose the correct order:
- A \((A), (B), (C), (D)\)
- B \((D), (C), (A), (B)\)
- C \((B), (A), (D), (C)\)
- D \((C), (B), (D), (A)\)
Answer & Solution
Correct Answer
(B) \((D), (C), (A), (B)\)
Step-by-step Solution
Detailed explanation
Molar mass of \(O_2 = 2 \times 16 = 32 \text{ g/mol}\) Molar mass of \(CO_2 = 12 + 2 \times 16 = 44 \text{ g/mol}\) Molar mass of \(CO = 12 + 16 = 28 \text{ g/mol}\) Molar mass of \(H_2 = 2 \times 1 = 2 \text{ g/mol}\) Number of molecules \(\propto \frac{1}{\text{Molar mass}}\)…
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
- Which of the following statements is NOT correct regarding the catalytic ability of transition metals?CUET 2025 Easy
- Antibiotic, which is bacteriostatic among the following is:CUET 2023 Medium
- Answer the question on basis of passage given below :
The noble gases have closed shell electronic configuration and are monatomic gases under normal conditions. The low boiling points of lighter noble gases are due to the weak dispersion forces between the atoms and the absence of other inter atomic interaction. The direct reaction of xenon with fluorine leads to a series of compounds with oxidation numbers \(+2, +4\) and \(+6\).
\(\text{XeF}_4\) reacts violently with water to give \(\text{XeO}_3\). The compound of Xenon exhibit stereoisomerism and their geometries can be deduced considering the total number of electrons in the valence shell.
Structure of \(\text{XeO}_3\) is:CUET 2023 Easy - Which of the following will not give iodoform reaction?CUET 2025 Medium
- When dilute aqueous solution of \(\text{KI}\) (excess) is added to \(\text{AgNO}_3\) solution, the charge on the \(\text{AgI}\) colloidal, particles formed will be :CUET 2023 Hard
- Which of the following statements are correct?
A. \(\text{CuI}_2\) is not known.
B. \(\text{Cu}_2\text{I}_2\) is known.
C. \(\text{Cu}^{2+}\) ion oxidises \(\text{I}^-\text{}\) to \(\text{I}_2\).
D. \(\text{Cu}^{2+}\) ion does not oxidise \(\text{I}^-\text{}\) to \(\text{I}_2\).CUET 2023 Easy
More PYQs from CUET
- Choose the phenomenon from the following, which shows that light is a transverse wave.CUET 2025 Medium
- The five month moving averages for the following data
is :Month (rth) 43 44 45 46 47 48 49 50 51 Actual Demand 105 106 110 110 114 121 130 128 137 CUET 2025 Hard - If the probability distribution of a random variable X is as given below :
Then the value of K is:X -1 0 1 2 3 P(X) K \(\frac{1}{5}\) 2K \(\frac{3}{10}\) K CUET 2023 Hard - Agarose gel electrophoresis is employed to check the progression of a restriction enzyme digestion of DNA. In this technique, the movement of a DNA does not depend on -CUET 2025 Easy
- Five dice are thrown simultaneously. If the occurrence of an even number in a single dice is considered a success, then the probability of at most 3 successes is:CUET 2025 Medium
- Match List I with List II
Choose the correct answer from the options given below:LIST I (Devices) LIST II (Working Priciple) A. Transformer I. Wheatstone Bridge B. Meter Bridge II. Electromagnetic Induction C. Moving Coil Galvanometer III. Mutual Induction D. A.C Generator IV. Torque on a current carrying coil CUET 2023 Medium