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CRYSTALLINE SOLIDS Solids may be loosely categorized into two groups. Amorphous solid has no long-range order in their molecular or atomic structure. By their nature Amorphous
Q. How to Replace Metals from their Salts: Ans. If zinc is added to a solution of copper (II) sulfate, it dissolves. A reddish-brown deposit of metallic copper appears,
Reduction of Alkyne: Alkynes add on hydrogen in existence of appropriate catalysts like finely divided Ni, Pd. Determine if the triple bond is not found at the end of t
0.47 moles of Sodium were reacted with 26g of Copper(II) Nitrate? If the actual yield of copper metal was 1.43g, what is the percentage yield of this reaction? 2. What is the equiv
SOME SILVER MINES DUMP SHREDDED IRON CANS INTO PONDS CONTAING DISSOLVED SILVER SALTS. WRITE THE TWO HALF REDOX REACTIONS AND THE OVERALL BALANCED REACTION THAT EXPLAINS THE DEPOSIT
Aufbau principle is not satisfied by: (1) Cr and Cl (2) Cu and Ag (3) Cr and Mg (4) Cu and Na Ans: Cu and Ag
Characteristic flame colour: specific metals and their salts impart particular colours to Bunsen burner flame. (1) Pb (plumbum) impart pale greenish colour to the f
Dehydration or Decarboxylation of acids by MnO/300°C (1) This reaction occurs among two molecules of carboxylic acids. Both can be the same or different. (2) If one of the c
Q. What are the physical properties of solids? Ans. Most solids eventually melt when heated. This is because the particles gain enough energy to exceed the attractive for
give exsample on how undesired wavelengths are blocked and desired one is trans mitted
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