The s-Block Elements Chemistry NEET Practice Questions
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Crude sodium chloride obtained by the crystallization of brine solution does not contain
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Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s2 2s2 2p3, the simplest formula for this compound is
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In which of the following the hydration energy is higher than the lattice energy?
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The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following orders?
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The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP, and with Na, is responsible for the transmission of nerve signals.
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Solubility of the alkaline earth metal sulphates in water decreases in the sequence
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Which one of the alkali metals, forms only, the normal oxide, M2O on heating in air?
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The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCO3 is
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Which of the following statement is false?
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Which of the following is an amphoteric hydroxide?
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Which of the alkali metal chloride (MCl) forms its dihydrate salt (MCl.2H2O) easily?
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Which of the following represents calcium chlorite?
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On heating which of the following releases CO2 most easily?
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All the following substances react with water. The pair that gives the same gaseous product is
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Which of the following oxides is not expected to react with sodium hydroxide?
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The compound A on heating gives a colorless gas and a residue that is dissolved in water to obtain B. Excess of CO2 is bubbled through an aqueous solution of B, and C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound is
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HCl was passed through a CaCl2, MgCl2, and NaCl solution. Which of the following compound(s) crystallize (s)?
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The product obtained as a result of a reaction of nitrogen with CaC2 is
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Among CaH2, BeH2, BaH2, the order of ionic character is
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Which compound will show the highest lattice energy?
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In the case of alkali metals, the covalent character decreases in the order
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Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is
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Washing soda has a formula
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In Castner-Kellner cell for production of sodium hydroxide
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Bleaching powder is obtained by the action of chlorine gas and
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Which of the following statements is false?
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Property of the alkaline earth metals that increases with their atomic number
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The suspension of slaked lime in water is known as
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Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
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Which of the following is known as a fusion mixture?
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The electronic configuration of calcium atoms may be written as
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Which of the following compounds has the lowest melting point?
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Compared with the alkaline earth metals, the alkali metals exhibit
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Which of the following atoms will have the smallest size?
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Which one of the following properties of alkali metals increases in magnitude as the atomic number rises?
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Which of the following metal ions play an important role in muscle contraction?
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The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resin follows the order
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Which of the following statements is incorrect?
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Identify the correct statement.
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Which of the following alkaline earth metal sulfates has a hydration enthalpy higher than the lattice enthalpy?
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In which of the following processes, fused sodium hydroxide is electrolyzed at a 330 °C temperature for extraction of sodium?
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The solubility in water of sulphate down the Be group is Be > Mg > Ca > Sr > Ba. This is due to
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Which one of the following compounds is a peroxide?
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Ionic mobility of which of the following alkali metal ions is lowest when the aqueous solution of their salts is put under an electric field?
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In context with beryllium, which one of the following statements is incorrect?
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