please help me fast
Answers
ans 1. A platinum-rhodium gauze is used as a catalyst in the reaction between ammonia and methane to produce hydrogen cyanide, an intermediate in the production of methyl 2-methylpropenoate.
ans 2.When dilute hydrochloric acid is added to lead nitrate solution. white ppt of lead chloride appears.
Pb(NO
3
)
2
+HCl→PbCl
2
+2HNO
3
(ii) When barium chloride reacts with sodium sulphate solution, white ppt of barium sulphate is obtained.
BaCl
2
+Na
2
SO
4
→BaSO
4
+2NaCl
(iii) When conc. sulphuric acid is added to sugar crystals sugar charcoal is formed. Sugar charcoal is a black spongy mass. Conc. sulphuric acid is a super dehydrating agent and it sucks up all the water from the sugar.
(iv) When dilute hydrochloric acid is added to copper carbonate carbon dioxide is evolved.
CuCO
3
+HCl→CuCl
2
+H
2
O+CO
2
(v) When dilute hydrochloric acid is added to sodium thiosulphate sulphur dioxide gas is released.
Na
2
S
2
O
3
+2HCl→2NaCl+SO
2
+H
2
O+S
3 ))))If the surface area of a reactant is increased: more particles are exposed to the other reactant. there is a greater chance of particles colliding, which leads to more successful collisions per second. the rate of reaction increases.
ans 4When surface area increases rate of effective collision increases. So the rate of reaction increases.
ans 5Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.
hope it helps u
Answer:
i don't no
Explanation: