13Plumbo-solvancy means dissolution of lead in
1. HOT WATER
2. ACIDS
3. ORDIANRY WATER
4. ALKALIES
ques out the world for me!!!
1. Sulphates of which of the following donot form alums
1. Cs
2. K
3. Li
4. Na
Which of the following compounds decompose on heating similar 2 LiNO3
1.Be(NO3)2
2. Mg(NO3)2
3. Sr(NO3)2
4. All of these
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15 Answers
13A metal forms strong base, salts and stable carbonates . The metal is
1. Transition metal
2. Alkali
3. Alkaliine earth
4. none
1313Al reacts with conc H2SO4 to liberate
1. SO2
2. SO3
3. S
4. H2S
1Double sulfates with the general formula A2SO4·B2(SO4)3·24H2O, are known where A is a monovalent cation such as sodium, potassium, rubidium, cesium, or thallium(I),
source:wiki
1for the first 1 the ans is Li bcoz Li is a small alkali metal to form alums or double salts....
for the 2nd 1 the ans is Mg(CO3) bcoz of the diagonal relationship b/w Li & Mg.....
for the 3rd 1 the ans is alkali....
for the 4th 1 the ans is ordinary water bcoz the defn.. of Plumbo-solvancy is the dissolution of lead in water in the presence of oxygen...
1@bhaskar, for second, its not Mg(no3)2... see post above....
i also thot that n told the same,,,, but ans is something else :(
1for 2nd it should be all of these as all Be, Mg & Sr belongs to same group so reracts similarly
& Al reacts with conc. H2SO4 to give SO2
13yeah it shud ...i l go for it if it cumz nywhr next tym
thou the ans given is d