Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.4k views
in Hydrogen by (83.6k points)
recategorized by

Which of the following reactions produces hydrogen?

(a) Mg + H2O

(b) H2S2O+ H2O

(c) BaO2 + HCI

(d) Na2O+ 2HCl

2 Answers

+2 votes
by (92.0k points)
selected by
 
Best answer

Correct option (a) Mg + H2O   

Explanation:

Alkali and alkaline earth metals react with water to produce hydrogen gas and metal hydroxides. This is due to their high electropositive character.

Mg + 2H2O Mg(OH)2 + H2

+1 vote
by (20 points)

The correct option is 

Mg + 2H2O -----Mg (OH) + H2

EXPLANATION:

This reaction produces hydrogen gas which burns with a pop sound.

It produces a metal hydroxide named Magnesium hydroxide and  a light gas named Hydrogen. ..

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...