1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following lanthanoid ions is diamagnetic?
(At. nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70)
A
Eu2+
B
Yb2+
C
Ce2+
D
Sm2+
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the correct order of solubility in aqueous medium.
A
Na2S > CuS > ZnS
B
Na2S > ZnS > CuS
C
Cus > ZnS > Na2S
D
ZnS > Na2S > CuS
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following statements about the interstitial compounds is incorrect?
A
They are much harder than the pure metal.
B
They have higher melting points than the pure metal.
C
The retain metallic conductivity.
D
They are chemically reactive.
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium (III) chloride. The number of moles of AgCl precipitated would be
A
0.003
B
0.01
C
0.001
D
0.002