CUET · CHEMISTRY · PYQ PAPER 2025
Read the passage carefully and answer the Questions
A homogeneous mixture of two or more than two components has uniform composition and properties. The binary solutions have two components, which may be solid, liquid or gas. The resultant solution has a larger amount of solvent and a smaller amount of solute. The amount of solute in a given amount of solvent decides the concentration of the resulting solution. The concentration can be expressed in various ways, like molarity, molality, normality and mole fraction. The molality of a 1 liter aqueous solution of \(93 \backslash \% H _2 SO _4\) (mass/volume) is:
(Given: density of the solution \(=1.84 g mL ^{-1}\), molar mass of \(\left.H _2 SO _4=98 g mol ^{-1}\right)\)
- A \(10.43 mol kg ^{-1}\)
- B \(9.49 mol kg ^{-1}\)
- C \(18.4 mol kg ^{-1}\)
- D \(8.4 mol kg ^{-1}\)
Answer & Solution
Correct Answer
(A) \(10.43 mol kg ^{-1}\)
Step-by-step Solution
Detailed explanation
Mass of \(H_2SO_4 = 0.93 \times 1000 \text{ g} = 930 \text{ g}\) Moles of \(H_2SO_4 = \frac{930 \text{ g}}{98 \text{ g mol}^{-1}} = 9.4898 \text{ mol}\) Mass of solution \( = 1.84 \text{ g mL}^{-1} \times 1000 \text{ mL} = 1840 \text{ g}\) Mass of solvent…
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
- \(H_3 C-CH_2-CH_2-CH_2-CH=CH_2 \xrightarrow{HBr} A\)
A will beCUET 2023 Hard - Read the passage carefully and answer the questions
Carbohydrates such as cane sugar, glucose, starch etc. belong to a class of naturally occurring organic compounds. Structurally these are polyhydroxy aldehydes or ketones or the compounds which produce such units on hydrolysis. Carbohydrates which are sweet in taste are called sugars. Theses sugars can be reducing or non-reducing. Monosaccharides cannot be hydrolyzed to simpler units whereas Oligosaccharides yield two to ten monosaccharide units on hydrolysis. Polysaccharides yield large number of monosaccharide units on hydrolysis. This class of biomolecules is essential for living systems as they serve as storage molecules in plants and animals. In addition, they provide raw materials for important industries like furniture, textiles, paper, lacquers and breweries. Two aldopentose form important constituents of nucleic acids. Carbohydrates are also called saccharides (Greek: sakcharon which means sugar). Sugar which is used in household and in milk also comes under this class of biomolecules.
Which of the following is incorrect for glucose?CUET 2025 Hard - In the depression of freezing point experiment, it is found that :
(A) The vapour pressure of the solution is less than that of the pure solvent.
(B) The vapour pressure of solution is more than that of the pure solvent.
(C) Only the solute molecules solidify at the freezing point.
(D) Only the solvent molecules solidify at the freezing point.
Choose the correct answer from the options given below :CUET 2023 Easy - Which of the following statements about hormones is not correct?CUET 2023 Easy
- Among the following statements on the nitration of aromatic compounds, the false one is:CUET 2023 Easy
- Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human beings?CUET 2023 Easy
More PYQs from CUET
- Match List-I with List-II
Choose the correct answer from the options given below:List I (Function) List II (Derivative with respect to ' x ') (A) \(f(x)=x^x\) (I) \(a x^{a-1}\) (B) \(f(x)=a^x\) (II) 0 (C) \(f(x)=a^a\) (III) \(a^x \log _e a\) (D) \(f(x)=x^a\) (IV) \(x^x\left(1+\log _e x\right)\) CUET 2025 Medium - What is the correct IUPAC name of\([Pt(NH_{3})_{2}Cl_{2}]\)CUET 2025 Hard
- Calculate Three yearly moving averages for the following data
Year 2016 2017 2018 2019 2020 2021 Production (thousand tonnes) 200 220 231 254 202 243 CUET 2025 Hard - Match List-I with List-II
Choose the Correct answer from the options given below :List-I List-II (A) Degree of this differential equation \(\frac{d^4 y}{d x^4}+2 \log _e\left(\frac{d^3 y}{d x^3}\right)=0\) (I) 1 (B) Order of this differential equation \(e^{\left(\frac{dy}{dx}\right)^3}+3 y\left(\frac{d^2 y}{d x^2}\right)^3=0\) (II) 4 (C) Degree of \(\frac{d^4 y}{d x^4}+\left(\frac{d y}{d x}\right)^2=0\) (III) not defined (D) Order of the differential equation \(2 \frac{d^4 y}{d x^4}+\left(\frac{d^2 y}{d x^2}\right)^5=0\) (IV) 2 CUET 2025 Hard - The differential equation of the family of lines through the origin is:CUET 2023 Hard
- Identify the incorrect statement about the human genome -CUET 2023 Easy