This chapter is currently out of syllabus
1
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
When gypsum is heated to 393 K, it forms :
A
CaSO4 . 0.5H2O
B
CaSO4 . 5H2O
C
Dead burnt plaster
D
Anhydrous CaSO4
2
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The INCORRECT statement is :
A
Lithium is least reactive with water among the alkali metals
B
LiCl crystallises from aqueous solution as LiCl.2H2O
C
Lithium is the strongest reducing agent among the alkali metals
D
LiNO3 decomposes on heating to give LiNO2 and O2
3
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct sequence of thermal stability of the following carbonates is :
A
BaCO3 < SrCO3 < CaCO3 < MgCO3
B
MgCO3 < CaCO3 < SrCO3 < BaCO3
C
BaCO3 < CaCO3 < SrCO3 < MgCO3
D
MgCO3 < SrCO3 < CaCO3 < BaCO3
4
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
A hydrated solid X on heating initially gives a monohydrated compound Y. Y upon heating above 373 K leads to an anhydrous white powder Z. X and Z, respectively, are :
A
Baking soda and dead burnt plaster.
B
Washing soda and soda ash
C
Washing soda and dead burnt plaster.
D
Baking soda and soda as.
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