jee_main_2026_22_january_evening - Some Basic Concepts of Chemistry Topics

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QUESTION #53 Limiting Reagent and Stoichiometry
textA + 2textB rightarrow textAB_2 36.0text g of 'A' (Molar mass: 60text g mol^-1) and 56.0text g of 'B' (Molar mass: 80text g mol^-1) are allowed to react. Which of the following statements are correct? (A) 'A' is the limiting reagent (B) 77.0text g of textAB_2 is formed (C) Molar mass of textAB_2 is 140text g mol^-1 (D) 15.0text g of A is left unreacted after the completion of reaction. Choose the correct answer from the options given below:
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QUESTION #65 Primary Standards in Volumetric Analysis
Identify the correct statements: A. Hydrated salts can be used as primary standard. B. Primary standard should not undergo any reaction with air. C. Reactions of primary standard with another substance should be instantaneous and stoichiometric. D. Primary standard should not be soluble in water. E. Primary standard should have low relative molar mass. Choose the correct answer from the options given below:
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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