Question:

The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is

Updated On: Jul 14, 2022

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?

Questions Asked in KCET exam

A wooden block of mass M lies on a rough floor. Another wooden block of the same mass is hanging from the point O through strings as shown in the figure. To achieve equilibrium, the coefficient of static friction between the block on the floor and the floor itself is
- KCET - 2025
- Newtons Laws of Motion
View Solution
A series LCR circuit containing an AC source of 100V has an inductor and a capacitor of reactances 24$\Omega$ and 16$\Omega$ respectively. If a resistance of 6$\Omega$ is connected in series, then the potential difference across the series combination of inductor and capacitor will be
- KCET - 2025
- Electromagnetic waves
View Solution
A scientist wants to produce virus-free plant in tissue culture. Which part of the plant will he use as an explant? a) mature stem b) axillary meristem c) apical meristem d) mesophyll cell Choose the correct option from the following.
- KCET - 2025
- Tissue Culture
View Solution
In an experiment to determine the figure of merit of a galvanometer by half deflection method, a student constructed the following circuit. He applied a resistance of $ 520 \, \Omega $ in $ R $. When $ K_1 $ is closed and $ K_2 $ is open, the deflection observed in the galvanometer is 20 div. When $ K_1 $ is also closed and a resistance of $ 90 \, \Omega $ is removed in $ S $, the deflection becomes 13 div. The resistance of galvanometer is nearly:
- KCET - 2025
- Viscosity
View Solution
If $ A $ is a square matrix of order $ 3 \times 3 $, $ \det A = 3 $, then the value of $ \det(3A^{-1}) $ is:
- KCET - 2025
- Matrices
View Solution

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.