FSC Chemistry MCQs Chapter 2 Class 12





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Chemistry Ch 2 Class 12 s and p Block Elements

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The carbonates of alkali metals are soluble in water except:

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What is the chemical formula of Epsom Salt?

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Nascent hydrogen used in the formation of methane is obtained from the reaction of:

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Oxygen does not react with:

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Which of the following is a major mineral of Lithium?

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For Alkali Metals, decrease in the ionization potential is because of the increasing:

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Which one of the following is a common mineral of calcium? a

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Only two elements are present in:

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Which one of the following alkaline earth metal carbonates is thermally the most stable?

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Which of the following statements about H2S is false:

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7) Gypsum supplies to soil

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Which of the following is the correct order of electronegativity (from highest to lowest)?

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Which of the following is chrome yellow’s pigment?

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Magnesium reacts with nitrogen to form:

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Rocky crust of earth is mainly composed of?

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The ionization of Hydrogen atom gives:

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The basic character of alkali metal oxides:

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Metals belonging to the same group in the periodic table are

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The false statement regarding saline hydrides is:

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________ are prepared by passing hydrogen gas over hot alkali metals or alkaline earth metals?

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Magnesium oxide is used in:

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Which of the following oxides is most acidic oxide?

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Point out the property which is not characteristic of alkali metal:

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By heating 25g of limestone (CaCO3) , the weight of carbon dioxide produced is

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Densities of alkali metals are low due to:

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The chemical name of the baking powder is:

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Color of Epsom salt Is

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Formula of Epsom salt is:

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Hydrides which are prepared by passing hydrogen gas over hot alkali metals or alkaline earth metals are called:

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The flame colour of Ca in flame test is:

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Which ions shall be removed to make hard water soft?

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Which one of these reacts rapidly with water at room temperature?

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Which of the following statements is true?

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Which of the following compounds is formed when sodium burns in excess of air?

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Red lead is:

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Which of the following do not occur in Free State?

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When alkali metal react with water the fire Is produced clue to:

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Potassium, Rubidium, Cesium react with oxygen to form which types of oxides?

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Most abundant salt of sodium in nature is:

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Sodium reacts with water more vigorously than lithium because it:

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Pierrie Curie and Marie Curie isolated which radioactive element?

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Which of the following is not true about caustic soda? a) It causes painful burns c) It is manufactured by Costner—Kellner process e) Both b and d

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Which of the following is unstable?

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Strontium lies between calcium and barium in Group II A in the Periodic Table. Which of the properties could be predicted for strontium?

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The nitrides of alkaline earth metals hydrolyse with water to form:

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Identify the correct statement:

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Li is an element of group?

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Which is the paramagnetic oxide of chlorine?

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Which of the following has the highest value of electronegativity?

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Chlorine upon reaction in cold NaOH yields:

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When Gypsum is heated to about 100° C, it losses some water of crystallization and becomes:

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Which is most basic in character?

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Which property of the Group II elements (magnesium to barium) and their compounds increases with an increasing proton (atomic) number?

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Caster kellners cell evaporated has replaced __________ because the Caster Kellner process evaporates__________?

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Melting point of Group I-A elements is than Group II-A elements

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Magnesiums keep on burning in:

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Commercial hydrogen is obtained from:

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The most dense element is:

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59 / 68

Group 1A and 11A are known as: ) s block elements d) P block elements

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Which one of the following statements is true?

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Which of the following is least polarizable?

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To avoid the formation of toxic compounds with chlorine, which substance is used for disinfecting water?

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Sodium Is prepared by

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The lower part of the “Solvay tower” has been cooled during the manufacture of soda ash because:

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What is the chemical formula for plaster of Paris?

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Which alkaline earth metal make peroxide?

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Which of the following elements has the highest boiling point?

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Aqueous solution of Na2CO3is:

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