For alkali metals, which one of the following trends is incorrect ?

Which of the following statements is in correct ?

Which of the following compounds will not evolve H₂ gas on reaction with alkali metals ?

Which of the following has the highest tendency to give the reaction \(M_{g}^{+}\xrightarrow[Medium]{Aqueous}M_{aq}^{+}\)

sodium is stored in _____________

Match the flame colours of the alkali and alkaline earth metal salts in the bunsen burner

Assertion : BeSO₄ is soluble in water while BaSO₄ is not
Reason : Hydration energy decreases down the group from Be to Ba and lattice energy remains almost constant.
(a) both assertion and reason are true and reason is the correct explanation of assertion
(b) both assertion and reason are true but reason is not the correct explanation of assertion
(c) both assertion and reason are false.
(d) Both assertion and reason are false

Among the following the least thermally stable is ___________

Half life of francium is _______

The hydration enthalpies of alkali metal ions decreases in ______ order.

The order of decreasing ionisation enthalpy in alkali metals is _____________

The correct increasing order of density of alkali metal is _____________

Which of the following oxides is the most basic in nature?

Match the list I with List II and select the correct answer using. the code given below the lists.

Quicklime is _________

Explain what is meant by efflorescence.

Give the systematic names for the following
Milk of magnesia

Substantiate lithium fluoride has the lowest solubility among group one metal fluorides.

Mention the uses of plaster of paris

Beryllium halides are Covalent whereas magnesium halides are ionic why ?

Write balanced chemical equation for the following processes
Heating calcium in oxygen

How is plaster of paris prepared ?

Give the uses of gypsum.

How is sodium bicarbonate prepared?

Discuss the biological importance of sodium and potassium.

What is the cause for diagonal relationship between beryllium and aluminium?

How does (i) solubility, (ii) thermal stability, (iii) basic character hydroxides of group 2 elements very down the group.

Arrange the following as indicated.
(i) BeSO₄, MgSO₄ CaSO₄, SrSO₄ and BaSO₄ in the increasing order of solubility.
(ii) Be (NO₃)₂,  Mg(NO₃)₂ , Ca(NO₃)₂ , Sr(NO₃)₂ , Ba(NO₃)₂ < Ba(NO₃)₂ in decreasing order of forming hydrated salts.

Give equations for the reaction of CaO with
(i) H₂O
(ii) CO₂
(iii) SiO₂
(iv) P₄O₁₀.

What is slaked lime? How is it produced?

Explain the term 'desert rose'.

What is 'dead burnt plaster'? What is use?

Mention the uses of quick lime

Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?

What is the effect of heat on the following compounds (Give equations for the reactions)?
(i) CaCO₃
(ii) CaSO₄.2H₂O

Why sodium hydroxide is much more water soluble than chloride ?

Write the chemical equations for the reactions involved in solvay process of preparation of sodium carbonate.

An alkali metal (x) forms a hydrated sulphate, X₂SO₄ • 10 H₂O. Is the metal more likely to be sodium (or) potassium.

Why alkaline earth metals are harder than alkali metals.

Which would you expect to have a higher melting point magnesium oxide or magnesium fluoride ? Explain your reasoning.

Alkali metals have low melting and boiling point. Density of alkali metals is very low. Give reason.

List down the uses of washing soda

What is meant by 'diagonal relationship' in periodic table? Why is it so?

Why is the behaviour of beryllium is different from the other elements of the same group?

Be and Mg do not give colour to flame whereas other alkaline earth metals do so. Why?

Complete and balance the following equations for the reactions given between
(i) Slaked lime + CO₂ + H₂O
(ii) Quick lime + CO₂
(iii) Slaked lime + CO₂
(iv) Be(OH)₂ + HCl + H₂O

How is bleaching powder prepared ?

How would you explain the following observation? BeO is almost insoluble but BeSO₄ is soluble in water.

Explain why?
(i) The ionic character of hydrides of alkali metals increase from Li to Cs.
(ii) The stability of hydrides decrease down the group.
(iii) Hydrides behave as strong reducing agents.

Explain the solvay process of manufacturing sodium carbonate.

Explain the Castner-Kellner process of manufacturing sodium hydroxide.

Although IE₁ values of alkaline earth metals are higher than that of alkali metals the IE₂ values of alkaline earth metals are much smaller than alkali metals. Explain.

Explain the action of ammonia on alkali metals (or) AtAi metals dissolve in liquid ammonia to give deep blue solution. Why?

Be(OH)₂ is amphoteric in nature. Prove it

Draw the structure of BeCl₂ in different physical state

Discuss briefly the similarities between beryllium and aluminium.

Alkaline earth metal (A), belongs to 3rd period reacts with oxygen and nitrogen to form compound (B) and (C) respectively. It undergo metal displacement reaction with AgNO₃ solution to form compound (D).

Explain the important common features of Group 2 elements.

Describe briefly the biological Importance of Calcium and magnesium.

Compare the properties of beryllium with other elements of the same group.

An element belongs to group 1 and period 3 reacts with chlorine gas to form A. (A) reacts with ammonium bicarbonate to give compounds (B) and (C). Compound (B) is then heated to give compound (D). Identify A, B, C and D and write the respective equations.

An element A belonging to group 2 and period 2 reacts with chlorine at an elevated temperature to give compound (B) compound B combines with LiAIH₄ to form compound (C). Which is an hydride identify A, B, and C?

Discuss the anomalous behaviour of beryllium.

Describe the biological importance of sodium and potassium.

Distinguish between alkali metals and alkaline earth metals.