Related InterviewSolutions

• Assertion (A): Sodium hydrogen carbonate is used in baking cakes and pastries Reason (R): On heating sodium hydrogen carbonate, liberates bubbles of `CO_(2)` leaving holes in cakes and making them light and fluffy.A. both (A) and (R) are correct and (R) is the correct explanation of (A)B. both (A) and (R) are correct but (R) is not the correct explanation of (A)C. (A) is correct but (R) is wrongD. (A) is wrong but (R) is correct
• Choose the correct statementA. Rubidium is a radioactive element.B. Francium is highly radioactiveC. Alkali metals are less reactiveD. Alkali metals belong to 2s group
• Choose the correct statementA. Alkali metals act as good oxidising agent.B. Alkali metals act as good reducing agentC. Alkaline earth metals act as dehydrating agentsD. Alkaline earth metals act as decarboxylating agents
• Choose the correct statementA. Sodium carbonate `Na_(2) CO_(3).10H_(2)O` above 373K called soda ashB.  Sodium-calcium pump play an important role in transmitting nerve signals.C.  Radium is the most abundant alkaline earth metal.D. Common oxidation state of alkali metal is +2
• Which of the following salt is more soluble?A. `NaCIO_(4)`B. ` LiClO_(4)`C. `CsBr`D. KI
• Which of the following salt is more soluble?A. `NaClO_(4)`B. ` LiClO_(4)`C. `CsBr`D. KI
• Which of the following are stored under oil?A. Alkali metalsB. Coinage metalsC. Noble metalsD. Phosphorous
• Among the following pairs, which occurs in large amounts in sea water?A. Li, RbB. Cs, FrC. Na, KD. Be, He
• Which of the following is not a peroxide?A. `KO_(2)`B. `Cro_(5)`C. `Na_(2)O_(2)`D. `BaO_(20`
• Choose the correct pairA.  Lithium : LilacB. Potassium : Crimson redC. Caesium : BlueD. Rubidium : Yellow