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1
IIT-JEE 2008 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

Aqueous solutions of Na$$_2$$S$$_2$$O$$_3$$ on reaction with Cl$$_2$$ gives:

A
Na$$_2$$S$$_4$$O$$_6$$
B
NaHSO$$_4$$
C
NaCl
D
NaOH
2
IIT-JEE 2007
MCQ (Single Correct Answer)
+2
-0.5
The question contains STATEMENT - 1 (Assertion) and STATEMENT - 2 (Reason) and has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
STATEMENT - 1 Alkali metals dissolve in liquid ammonia to give blue solutions. because
STATEMENT - 2 Alkali metals is liquid ammonia give solvated species of the type [M(NH3)n]+ (M = alkali metals)
A
Statement - 1 is true and Statement - 2 is true; Statement - 2 is a correct explanation for Statement - 1
B
Statement - 1 is true and Statement - 2 is true; Statement - 2 is not a correct explanation for Statement - 1
C
Statement - 1 is True, Statement - 2 is False
D
Statement - 1 is False, Statement - 2 is True
3
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+1
-0.25
A sodium salt on treatment with MgCl3 gives white precipitate only on heating. The anion of the sodium salt is
A
$$HCO_3^-$$
B
$$CO_3^{2-}$$
C
$$NO_3^{-}$$
D
$$SO_4^{2-}$$
4
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+1
-0.25
The set representing the correct order of first ionization potential is
A
K > Na > Li
B
Be > Mg > Ca
C
B > C > N
D
Ge > Si > C
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