List of top Chemistry Questions on GROUP 1 ELEMENTS

Sodium metal is kept under

Peroxide and super oxides of alkali metals are coloured because of

Oxone is

Na(Sodium) reacts water water more vigorously than Li(Lithium) because

Metals form basic hydroxides. Which of the following metal hydroxide is the least basic ?

Main process for the manufacture of $Na_3CO_3$ is

Magnesium wire continues to burn in the atmosphere of $CO_2$,though $CO_2$ is not a supporter of combustion because

Lithium is the strongest reducing agent though it has highest ionisation energy in its group. Which of the following factors is responsible for making $Li$ the strongest reducing agent?

Lithium salts are mostly hydrated like $LiCl\cdot 2H_{2}O$ due to

Lithium and Magnesium exhibit diagonal relationship because

Lithium is strongest reducing agent among alkali metals also due to which of the following factor ?

$K_2CO_3$ cannot be prepared by Solvay's process because

In Solvay ammonia process, sodium bicarbonate is precipitated due to

In case of alkaline earth metals, the oxidation state of more than two is not observed because

In certain respects, lithium differs from other alkali metals, The main reason for this is

Hydrolith when dissolved in water liberates hydrogen. The formula of hydrolith is

Hydration enthalpy order of compound : $ {Li^{+} , Na^{+}, K^{+}, Rb^{+}}$ and $ {Cs^{+}}$

How does the ionization energy of 1st group elements vary ?

Gypsum is added to portland cement to

First ionisation energy of alkali metals is very low but second ionisation energy is very high because

Dehydration of hydrates of halides of calcium, barium and strontium i.e., $CaCl_2 \cdot 6H_2O$, $BaCl_2 \cdot 2H_2O$, $SrCl_2 \cdot 6H_2O$, can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides ?

Crude common salt is hygroscopic because of impurities of

Calcium does not combine directly with

$BeO$ is insoluble but $BaO$ is soluble as

$ {Be2C +H2O-> BeO +X}$ $ {CaC2 + H2O->Ca(OH)2 + Y}$ $ {Mg2C3 + H2O-> Mg(OH)2 + Z}$ $X, Y$ and $Z$ are respectively