JEE Main 201910 AprilEvening Shift
- Exam
- JEE Main
- Year
- 2019
- Date
- 10 April
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- s Block Elements
JEE Main 2019 · 10 April · Evening Shift · Chemistry · s Block Elements
A hydrated solid X on heating initially gives a monohydrated...
A hydrated solid X on heating initially gives a monohydrated compound Y. Y upon heating above leads to an anhydrous white powder Z. X and Z, respectively, are;
Options
- Awashing soda and soda ash.
- Bbaking soda and soda ash.
- Cwashing soda and dead burnt plaster.
- Dbaking soda and dead burnt plaster.
Correct answer
A. washing soda and soda ash.
Step-by-step solution
'X' is washing soda which on heating gives a monohydrate \left(N{a}_{2}C{O}_{3} . {H}_{2}O\right) .N{a}_{2}C{O}_{3}∴ X and Z are washing soda and soda ash.