Question:
The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is
The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is
Updated On: Jul 14, 2022
- Zn
- Mg
- Ca
- Fe
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
$Zn$ produces $H _{2}$ with both dil. $HCl$ and $NaOH ( aq )$. The corresponding reactions are:
$Zn +2 HCl \rightarrow ZnCl _{2}+ H _{2} \uparrow$
$Zn +2 NaOH \rightarrow Na _{2} ZnO _{2}+ H _{2} \uparrow$
Was this answer helpful?
0
0
Top Questions on dihydrogen
- High purity (>99.95%) dihydrogen is obtained by
- JEE Main - 2022
- Chemistry
- dihydrogen
- Which of the following statement about hydrogen is incorrect ?
- NEET (UG) - 2016
- Chemistry
- dihydrogen
- At its melting point ice is lighter than water because
- NEET (UG) - 1992
- Chemistry
- dihydrogen
- Water gas is produced by
- NEET (UG) - 1992
- Chemistry
- dihydrogen
- The reaction of $H_2 O_ 2$ with hydrogen sulphide is an example of ................ reaction.
- NEET (UG) - 1988
- Chemistry
- dihydrogen
View More Questions
Questions Asked in KCET exam
- Ten identical cells each emf 2V and internal resistance 1Ω are connected in series with two cells wrongly connected. A resistor of 10Ω is connected to the combination. What is the current through the resistor?
- KCET - 2023
- Cells in Series and in Parallel
- The speed of sound in an ideal gas at a given temperature T is v. The rms speed of gas molecules at that temperature is vrms. The ratio of the velocities v and vrms for helium and oxygen gases are X and X' respectively. Then \(\frac{X}{X'}\) is equal to
- KCET - 2023
- Thermodynamics
- If \(p(\frac{1}{q}+\frac{1}{r}),q(\frac{1}{r}+\frac{1}{p}),r(\frac{1}{p}+\frac{1}{q})\) are in A.P., then p, q, r
- KCET - 2023
- Arithmetic Progression
- A stretched wire of a material whose Young's modulus Y = 2 × 1011 Nm-2 has Poisson's ratio of 0.25. Its lateral strain εl = 10-3. The elastic energy density of the wire is
- KCET - 2023
- mechanical properties of solids
- A metallic rod of length 1 m held along east-west direction is allowed to fall down freely. Given horizontal component of earth’s magnetic field BH = 3 × 10-5 T. The emf induced in the rod at an instant t = 2s after it is released is ( Take g = 10 ms-2 )
- KCET - 2023
- Faradays laws of induction
View More Questions
Concepts Used:
Dihydrogen
Dihydrogen is the homonuclear diatomic molecule built from two hydrogen atoms. This molecule characterizes a covalent bond between two hydrogen atoms, satisfying each of their required pair configurations.
Structure of Dihydrogen:
The dihydrogen molecule characterizes a single covalent bond between the two hydrogen atoms that comprise it. This molecule has a linear shape and is nonionic in nature. Each hydrogen atom comes up with one electron towards the covalent bond.
Properties of Dihydrogen:
- At Standard Temperature and Pressure (STP), dihydrogen exists in the gaseous state.
- The melting point of H2 is 13.99 Kelvin. Transforming this value to the celsius scale, the melting point of dihydrogen can be expressed as -259.16 degrees celsius.
- The boiling point correlated with dihydrogen corresponds to 20.271 on the Kelvins scale. Transforming this value into the celsius scale, the boiling point of H2 can be represented as -252.879 degrees celsius.
- The latent heat of fusion associated with the H2 molecule correlates to 0.117 kilojoules per mole.
- The latent heat of vaporization (also known as the enthalpy of vaporization) of dihydrogen is equivalent to 0.904 kilojoules per mole.