(A) Black
(B) Violet
(C) White
(D) Red
Tag: Inorganic Chemistry
The number of allotropes of phosphorus in solid state is?
(A) 2
(B) 3
(C) 4
(D) 6
Copper forms colorless bead in borax bead test in reducing flame. The oxidation state of copper is?
(A) +1
(B) +2
(C) +3
(D) +4
Which element is deposited at the cathode during the electrolysis of brine in Nelson cell?
(A) H2
(B) Cl2
(C) Na
(D) O2
Rectified spirit is converted to absolute alcohol by the dehydrating agent?
(A) Sulphuric Acid
(B) Soda Lime
(C) Lime
(D) All of the above
Which of the following salt is fairly soluble in water?
(A) BeF2
(B) MgF2
(C) BaF2
(D) LiF
A metal does float on water gives vigorous reaction with water so much that it reacts with ice at -100 Degree Centigrade. The metal is?
(A) Na
(B) Cs
(C) Li
(D) K
Which of the following hybrids is highly unstable?
(A) SbH3
(B) PH3
(C) BiH3
(D) AsH3