This chapter is currently out of syllabus
1
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
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Out of Syllabus
Two elements A and B have similar chemical
properties. They don’t form solid
hydrogencarbonates, but react with nitrogen to
form nitrides. A and B, respectively, are :
2
JEE Main 2020 (Online) 2nd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The metal mainly used in devising
photoelectric cells is :
3
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Among the statements (a)-(d) the correct ones
are :
(a) Lithium has the highest hydration enthalpy among the alkali metals.
(b) Lithium chloride is insoluble in pyridine.
(c) Lithium cannot form ethynide upon its reaction with ethyne.
(d) Both lithium and magnesium react slowly with H2O.
(a) Lithium has the highest hydration enthalpy among the alkali metals.
(b) Lithium chloride is insoluble in pyridine.
(c) Lithium cannot form ethynide upon its reaction with ethyne.
(d) Both lithium and magnesium react slowly with H2O.
4
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
When gypsum is heated to 393 K, it forms :
Questions Asked from s-Block Elements (MCQ (Single Correct Answer))
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