MCQ's and OBJECTIVE QUESTION for ICSE

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Some topics in ICSE paper are devoted to MCQ's or objective question only say for
acton of heat on nitrates,periodic table(exceptions),identification of gases,nature of oxides,action of alkali on ammonium salt
here we will discuss daily maximum MCQ's for your ICSE,try to answer and check your preparation.. answer will be posted,only when asked
QNO 1. Among the following choose the odd one out
A) sodium oxide B)aluminium oxide C)zinc oxide D) lead oxide.
give proper explanation
Qno 2. Among sodium and potassium ______ is more metallic
Qno 3. X react with oxygen to form an gaseous oxide,which when passed through litmus solution turns it to red what is the nature of X ______(metallic ,non metallic,amphoteric)
Qno 4.Ammonium salts sublimes on heating and on treatment with sodium hydroxide liberates a gas ______ ,this reaction also proves that sodium hydroxide is_____(volatile,non volatile) in nature.
Qno 5.Aqueous solution of sodium carbonate is _______(acidic/basic) and ammonium chloride (acidic/basic) in nature
FOR objective question on gases take this Quiz ,http://foricse.blogspot.com/2011/02/identification-of-gases.html