Chlorides of which metal are soluble in organic solvents :

Which of the following reaction is correct?

Lithium aluminium hydride can be prepared from the reaction of :

The alkaline earth metal sulphate(s) which are readily soluble in water is/are : A. $${\mathrm{BeSO}}_4$$ B. $${\mathrm{MgSO}}_4$$ C. $${\mathrm{CaSO}}_4$$ D. $${\mathrm{SrSO}}_4$$ E. $${\mathrm{BaSO}}_4$$ Choose the correct answer from the options given below :

The correct order of hydration enthalpies is (A) K$${}^{+}$$ (B) Rb$${}^{+}$$ (C) Mg$${}^{2+}$$ (D) Cs$${}^{+}$$ (E) Ca$${}^{2+}$$ Choose the correct answer from the options given below :

Which one among the following metals is the weakest reducing agent?

Which of the following represents the correct order of metallic character of the given elements?

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A : The alkali metals and their salts impart characteristic colour to reducing flame. Reason R : Alkali metals can be detected using flame tests. In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Beryllium has less negative value of reduction potential compared to the other alkaline earth metals. Reason R : Beryllium has large hydration energy due to small size of Be$${}^{2+}$$ but relatively large value of atomization enthalpy In the light of the above statements, choose the most appropriate answer from the options given below :

Identify the correct statements about alkali metals. A. The order of standard reduction potential (M$${}^{+}$$ | M) for alkali metal ions is Na > Rb > Li. B. CsI is highly soluble in water. C. Lithium carbonate is highly stable to heat. D. Potassium dissolved in concentrated liquid ammonia is blue in colour and paramagnetic. E. All the alkali metal hydrides are ionic solids. Choose the correct answer from the options given below :

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List-I List-II A. Chlorophyll I. $$\mathrm{N}{\mathrm{a}}_2\mathrm{C}{\mathrm{O}}_3$$ B. Soda ash II. $$\mathrm{CaS}{\mathrm{O}}_4$$ C. Dentistry, Ornamental work III. $$\mathrm{M}{\mathrm{g}}^{2+}$$ D. Used in white washing IV. $$\mathrm{Ca}(\mathrm{OH}{)}_2$$ Choose the correct answer from the options given below :

Reaction of BeO with ammonia and hydrogen fluoride gives A which on thermal decomposition gives $$\mathrm{Be}{\mathrm{F}}_2$$ and $$\mathrm{N}{\mathrm{H}}_4\mathrm{F}$$. What is 'A'?

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R : Assertion (A) : ${\mathrm{BeCl}}_2$ and ${\mathrm{MgCl}}_2$ produce characteristic flame Reason (R) : The excitation energy is high in ${\mathrm{BeCl}}_2$ and ${\mathrm{MgCl}}_2$ In the light of the above statements, choose the correct answer from the options given below :

Better method for preparation of $${\mathrm{BeF}}_2$$, among the following is :

Identify the correct order of standard enthalpy of formation of sodium halides :

$$\mathrm{Be}(\mathrm{OH}{)}_2$$ reacts with $$\mathrm{Sr}(\mathrm{OH}{)}_2$$ to yield an ionic salt. Choose the incorrect option related to this reaction from the following :

The density of alkali metals is in the order :

In the given reaction cycle X, Y and Z respectively are :

Alkali metal from the following with least melting point is :

Match List-I with List-II: .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} .tg .tg-amwm{font-weight:bold;text-align:center;vertical-align:top} List - I List - II A. K I. Thermonuclear reactions B. KCl II. Fertilizer C. KOH III. Sodium potassium pump D. Li IV. Absorbent of CO$${}_2$$ Choose the correct answer from the options given below :