KCET · Chemistry · Redox Reactions
The metal that produce \(\mathrm{H}_{2}\) with both dil. \(\mathrm{HCl}\) and \(\mathrm{NaOH}(a q)\) is
- A \(\mathrm{Zn}\)
- B Mg
- C \(\mathrm{Ca}\)
- D \(\mathrm{Fe}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{Zn}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Zn}+2 \mathrm{HCl}\) (dil.) \(\longrightarrow \mathrm{ZnCl}_{2}+\mathrm{H}_{2}\) \(\mathrm{Zn}+2 \mathrm{NaOH}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Na}_{2}\left[\mathrm{Zn}(\mathrm{OH})_{4}\right]+\mathrm{H}_{2}\)
But, Mg, Ca and Fe do not produce hydrogen, when react with aqueous \(\mathrm{NaOH}\).
But, Mg, Ca and Fe do not produce hydrogen, when react with aqueous \(\mathrm{NaOH}\).
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
- The organic compound
can be classified as ______KCET 2025 Easy - When \( \mathrm{PbO}_{2} \) reacts with concentrated \( \mathrm{HNO}_{3} \), the gas evolved isKCET 2018 Medium
- In the reaction,
Aniline \(\xrightarrow[\text { Dil. } \mathrm{HCl}]{\mathrm{NaNO}_2} P \xrightarrow[\mathrm{NaOH}]{\text { Phenol }} Q\)KCET 2024 Easy - The Glycosidic linkage present in sucrose isbetweenKCET 2017 Medium
- In the electrolysis of acidulated water, it is desired to obtain \(1.12\) cc of hydrogen per second under STP condition. The current to be passed isKCET 2009 Easy
- Which one of the following forms propane nitrile as the major product?KCET 2010 Medium
More PYQs from KCET
- The time required for the light to pass through a glass slab (refractive index \(=1.5\) ) of thickness \(4 \mathrm{~mm}\) is
( \(c=3 \times 10^{8} \mathrm{~ms}^{-1}\), speed of light in free space)KCET 2011 Medium - The forbidden energy gap for Ge crystal at \(0 \mathrm{~K}\) isKCET 2022 Easy
- Which of the following hormones does not contain a polypeptide?KCET 2009 Hard
- The spectral series of the hydrogen atom that lies in the visible region of the electromagnetic spectrumKCET 2009 Easy
- An \(\alpha\)-particle and a proton moving with the same kinetic energy enter a region of uniform magnetic field at right angles to the field. The ratio of the radii of the paths of \(\alpha\)-particle to that of the proton isKCET 2012 Medium
- \( X Y \) - plane divides the line joining the points \( A(2,3,-5) \) and \( B(-1,-2,-3) \) in the ratioKCET 2019 Easy