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.
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.
- ABoth $A$ and $R$ are correct but $R$ is $NOT$ the correct explanation of $A$.
- B$A$ is correct but $R$ is not correct.
- C$A$ is not correct but $R$ is correct.
- DBoth $A$ and $R$ are correct and $R$ is the correct explanation of $A$.
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Similar Questions
Identify the correct statements from the following :
$I$. Tendency to form halide hydrates gradually increases from $Be$ to $Ba$ down the group.
$II$. Tendency to form stable superoxides increases from $Li$ to $Cs$ down the group.
$III$. Low solubility of $LiF$ is due to its high lattice energy.
$IV$. Solubility of carbonates of group-$2$ elements increases down the group.
$I$. Tendency to form halide hydrates gradually increases from $Be$ to $Ba$ down the group.
$II$. Tendency to form stable superoxides increases from $Li$ to $Cs$ down the group.
$III$. Low solubility of $LiF$ is due to its high lattice energy.
$IV$. Solubility of carbonates of group-$2$ elements increases down the group.
Given below are two statements:
Statement $I$ : The $4f$ and $5f$-series of elements are placed separately in the Periodic table to preserve the principle of classification.
Statement $II$ : $S$-block elements can be found in pure form in nature.
In the light of the above statements,choose the most appropriate answer from the options given below :
Statement $I$ : The $4f$ and $5f$-series of elements are placed separately in the Periodic table to preserve the principle of classification.
Statement $II$ : $S$-block elements can be found in pure form in nature.
In the light of the above statements,choose the most appropriate answer from the options given below :
DifficultJEE MAIN 2024
View SolutionMatch List-$I$ with List-$II$ :
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 :
| 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 :
Hydration enthalpy of which of the following ions is highest?
Explain the chemical properties of alkali metal elements (Group $I$).
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