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1
JEE Main 2018 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
When metal ‘M’ is treated with NaOH, a white gelatinous precipitate ‘X’ is obtained, which is soluble in excess of NaOH. Compound ‘X’ when heated strongly gives an oxide which is used in chromatography as an adsorbent. The metal ‘M’ is
A
Fe
B
Zn
C
Ca
D
Al
2
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The number of P $$-$$ O bonds in P4O6 is :
A
6
B
9
C
12
D
18
3
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In KO2, the nature of oxygen species and the oxydation state of oxygen atom are, respectively :
A
Oxide and $$-$$ 2
B
Superoxide and $$-$$ 1/2
C
Peroxide and $$-$$ 1/2
D
Superoxide and $$-$$ 1
4
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Lithium aluminium hydride reacts with silicon tetrachloride to form :
A
LiCl,   AlH3  and   SiH4
B
LiCl,  AlCl3  and  SiH4
C
LiH,   AlCl3  and  SiCl2
D
LiH,  AlH3   and   SiH4
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