COMEDK · Chemistry · 1. Some Basic Concepts of Chemistry
\(15 \mathrm{~g}\) of \(\mathrm{CaCO}_3\) completely reacts with
- A 6.25 g of HCl
- B 10.95 g of HCl
- C 11.95 g of HCl
- D 1.15 g of HCl
Answer & Solution
Correct Answer
(B) 10.95 g of HCl
Step-by-step Solution
Detailed explanation
The balanced equation the reaction is \(\underset{100 \mathrm{~g}}{\mathrm{CaCO}_3}+\underset{73 \mathrm{~g}}{2 \mathrm{HCl}} \longrightarrow \mathrm{CaCl}_2+\mathrm{H}_2 \mathrm{O}+\mathrm{CO}_2\) \(100 \mathrm{~g}\) of \(\mathrm{CaCO}_3\) completely reacts with…
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
- Among the following, which is not according to the property indicated against it?COMEDK 2024 Medium
- Propanal on reaction with dilute NaOH, undergoes aldol condensation resulting in the formation of a compound A. Identify the correct structure of A and name of the compound.COMEDK 2026 Medium
- The conjugate acid of \(\mathrm{NH}_{2}^{-}\)isCOMEDK 2012 Easy
- Which of the following is correct mixture of azeotrope?COMEDK 2021 Medium
- Solubility product of a salt \(A B\) is \(1 \times 10^{-8} \mathrm{M}^{2}\) in a solution in which the concentration of \(A^{+}\)ions is \(10^{-3} \mathrm{M}\). The salt will precipitate when the concentration of \(B^{-}\)ions is keptCOMEDK 2018 Medium
- The rate of appearance of bromine is related to the disappearance of bromide ion in the equation given below is:
\(\mathrm{BrO}_3^{-} \text {(aq) }+5 \mathrm{Br}^{-} \text {(aq) }+6 \mathrm{H}^{+} \rightarrow 3 \mathrm{Br}_2(\mathrm{l})+3 \mathrm{H}_2 \mathrm{O}(\mathrm{l})\)COMEDK 2024 Medium
More PYQs from COMEDK
- The enthalpies of formation of \(\mathrm{Al}_{2} \mathrm{O}_{3}\) and \(\mathrm{Cr}_{2} \mathrm{O}_{3}\) are \(-1596 \mathrm{~kJ}\) and \(-1134 \mathrm{~kJ}\) respectively. \(\Delta H\) for the reaction,
\(2 \mathrm{Al}+\mathrm{Cr}_{2} \mathrm{O}_{3} \longrightarrow 2 \mathrm{Cr}+\mathrm{Al}_{2} \mathrm{O}_{3}\) isCOMEDK 2013 Hard - Suppose we have three cards identical in form except that both sides of the first card are coloured red, both sides of the second are coloured black, and one side of the third card is coloured red and the other side is coloured black.
The three cards are mixed and a card is picked randomly. If the upper side of the chosen card is coloured red, what is the probability that the other side is coloured black.COMEDK 2024 Medium - The ground state energy of hydrogen atom is \(-13.6 \mathrm{~eV}\). If the electron jumps from the \(3^{\text {rd }}\) excited state to the ground state then the energy of the radiation emitted will be:COMEDK 2023 Medium
- If \(y = \tan^{-1}\left(\dfrac{\sqrt{1+x^3} + \sqrt{1-x^3}}{\sqrt{1+x^3} - \sqrt{1-x^3}}\right)\) then \(\dfrac{dy}{dx} =\)COMEDK 2026 Medium
- On bombarding \(\mathrm{U}^{235}\) by slow neutron, \(200 \mathrm{MeV}\) energy is release(d)If the power output of atomic reactor is \(1.6 \mathrm{MW}\), then the rate of fission will beCOMEDK 2018 Medium
- In the equation \(X = G^{-1/2}\,h^{1/2}\,c^{5/2}\), where G- universal gravitation constant, h- Planck's constant and c- velocity of light, the dimensions of X are that ofCOMEDK 2026 Easy