- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
(1)hydrogen | (2)carbon dioxide |
(3) oxygen | (4)hydrogen choride |
Correct answer: (1) hydrogen
Explanation: When Zinc metal (Zn) is heated with caustic soda (NaOH) solution, hydrogen gas evolves.
The chemical equation for the reaction is given below:
$Zn (s) + 2NaOH (aq) → Na_2ZnO_2 (aq) + H_2 (g)$
Advertisements