NEET Some Basic Concepts of Chemistry questions
9 Chemistry questions on Some Basic Concepts of Chemistry as asked in NEET, newest first.
- Among the following, choose the ones with equal number of atoms. A. 212 g of Na_2CO_3(s) [molar mass = 106 g] B. 248 g of Na_2O(s) [molar mass = 62 g] C. 240 g of NaOH(s) [molar mass = 40 g] D. 12 g of H_2(g) [molar…
2025
- Dalton's Atomic theory could not explain which of the following?
2025
- The highest number of helium atoms is in
2024
- 1 gram of NaOH present in its solution was treated with 25 mL of 0.75 M HCl solution, the mass of sodium hydroxide left unreacted is equal to
2024
- A compound X contains 32% of A, 20% of B and remaining percentage of C. Then, the empirical formula of X is (Given atomic masses of A = 64; B = 40; C = 32 u)
2024
- A compound is formed by two elements A and B. The element B forms cubic close packed structure and atoms of A occupy 1/3 of tetrahedral voids. If the formula of the compound is A_xB_y, then the value of x + y is in…
2023
- The right option for the mass of CO_2 produced by heating 20 g of 20% pure limestone is (Atomic mass of Ca = 40) CaCO_3 →[1200 K] CaO + CO_2
2023
- What mass of 95% pure CaCO_3 will be required to neutralise 50 mL of 0.5 M HCl solution according to the following reaction? CaCO_3(s) + 2HCl(aq) arrow CaCl_2(aq) + CO_2(g) + 2H_2O(l) [Calculate upto second place of…
2022
- Which one of the followings has maximum number of atoms?
2020
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