s-Block Elements · Chemistry · NEET

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Lithium and beryllium unlik...

Given below are two statements : one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$ : Assertion A : Metall...

Which one of the following statements is correct?

Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is :...

The element used for welding metals with high melting points is

CaCl2 and Ca(OCl)2 are components of

Which one of the following is not a calcination reaction?

Identify the incorrect statement from the following

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Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :

The structures of beryllium chloride in solid state and vapour phase, are :

The following metal ion activities many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmiss...

HCl was passed through A solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallize(s)?

Which of the following is an amphoteric hydroxide?

Enzymes that utilize ATP is phosphate transfer require an alkaline earth metal (M) as the cofactor. M is

Among CaH2 , BeH2 , BaH2 , the order of ionic character is

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s22s22p3, the simplest formula...

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?

The suspension of slaked lime in water is known as

In context with beryllium, which one of the following statements is incorrect?

The product obtained as a result of a reaction of nitrogen with CaC2 is

Which of the following statments is false?

On heating which of the following releases CO2 most easily?

20.0 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g magnesium oxide. What will be the percentage purity of m...

Solubility of the alkaline earth metal sulphates in water decreases in the sequence

The function of ''Sodium pump'' is a biological process operating in each and every cell of all animals. Which of the following biologically important...

In Castner-Kellner cell for production of sodium hydroxide

Which one of the alkali metals, forms only, the normal oxide, M2O on heating in air?

The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order :

Match List-I with List-II for the compositions of substances and select the correct answer using the code given above. .tg {border-collapse:collap...

Which of the following compounds has the lowest melting point?

Which one of the following is present as an active ingredient in bleaching powder for bleaching action?

The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of CO2 is bubbled through aqueous soluti...

Property of the alkaline earth metals that increases with their atomic number

Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy?

Which one of the following compounds is a peroxide?

Which of the following oxides is not expected to react with sodium hydroxide?

In the case of alkali metals, the covalent character decreases in the order

Equimolar solutions of the following were prepared in water separately. Which one of the solutions will record the highest pH?

The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which ...

The sequence of ionic mobility in aqueous solution is

The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCO3 is

In which of the following the hydration energy is higher than the lattice energy?

The correct order of the mobility of the alkali metal ions in aqueous solution is

A solid compound X on heating gives CO2 gas and a residue. The residue mixed with water forms Y. On passing an excess of CO2 through Y in water, a cle...

In which of the following processes, fused sodium hydroxide is electrolysed at a 330oC temperature for extraction of sodium?