Home
Class 10
CHEMISTRY
There are four metals P, Q, R and S. Ide...

There are four metals P, Q, R and S. Identify them by using the hints given below.
P forms basic oxide.
Q forms amphoteric oxide.
Oxide of R dissolves in water to form alkali.
S does not react with water at all.

A

`P to Fe, Q to Na, R to K, S to Zn`

B

`P to Zn, Z to Al, R to Na, S to Fe`

C

`P to Cu, Q to Zn, R to K, S to Pb`

D

`P to K, Q to Cu, R to Pb, S to Na `

Text Solution

AI Generated Solution

The correct Answer is:
To identify the metals P, Q, R, and S based on the given hints, we can analyze each hint step by step: ### Step 1: Identify Metal P - **Hint**: P forms a basic oxide. - **Analysis**: Basic oxides are typically formed by metals. Common examples include metals like sodium (Na), potassium (K), and calcium (Ca). For now, we can consider P to be one of these metals. ### Step 2: Identify Metal Q - **Hint**: Q forms an amphoteric oxide. - **Analysis**: Amphoteric oxides can react with both acids and bases. Common examples of metals that form amphoteric oxides include zinc (Zn) and aluminum (Al). Since P is already identified as a basic oxide, we can conclude that Q is likely to be zinc (Zn). ### Step 3: Identify Metal R - **Hint**: The oxide of R dissolves in water to form an alkali. - **Analysis**: Alkali metals like sodium (Na) and potassium (K) form hydroxides when their oxides dissolve in water. For example, potassium oxide (K2O) dissolves in water to form potassium hydroxide (KOH), which is an alkali. Thus, R is likely to be potassium (K). ### Step 4: Identify Metal S - **Hint**: S does not react with water at all. - **Analysis**: Metals that do not react with water include lead (Pb) and gold (Au). However, lead is more commonly known for its lack of reactivity with water due to the formation of a protective oxide layer. Therefore, we can conclude that S is lead (Pb). ### Summary of Identified Metals - P: Could be sodium (Na) or calcium (Ca) (but likely potassium based on further analysis). - Q: Zinc (Zn). - R: Potassium (K). - S: Lead (Pb). ### Final Identification - P: Potassium (K) - Q: Zinc (Zn) - R: Potassium (K) - S: Lead (Pb)
To identify the metals P, Q, R, and S based on the given hints, we can analyze each hint step by step: ### Step 1: Identify Metal P - **Hint**: P forms a basic oxide. - **Analysis**: Basic oxides are typically formed by metals. Common examples include metals like sodium (Na), potassium (K), and calcium (Ca). For now, we can consider P to be one of these metals. ### Step 2: Identify Metal Q - **Hint**: Q forms an amphoteric oxide. ...
Promotional Banner

Topper's Solved these Questions

  • FOOTSTEPS TOWARDS (JEE MAIN)

    MTG IIT JEE FOUNDATION|Exercise Integer/Numerical Value Type|5 Videos

  • FOOTSTEPS TOWARDS (NEET)

    MTG IIT JEE FOUNDATION|Exercise MCQ|45 Videos

  • FOOTSTEPS TOWARDS CBSE BOARD

    MTG IIT JEE FOUNDATION|Exercise SECTION - C|39 Videos

Similar Questions

Explore conceptually related problems

A certain element is forms a solid oxide which dissolves in water to form an acidic solution. The element is

Although metals form basic oxides, which of the following metals forms an amphoteric oxide ?

Although metals form basic oxides, which of the following metals form an amphoteric oxide ?

What kind of chemical compounds are formed when alkali metal oxides react with water?

Element P,Q, R and S belong to the same group. The oxide of P is acidic, oxide of Q and R are amphoteric while the oxide of S is basic. Which of the following elements is the most electropositive ?