Home
Class 10
CHEMISTRY
A brief information about a few elements...

A brief information about a few elements is given below :
P : It is used in making electrodes.
Q : It is required for combustion.
R : It is used to preserve food.
S : It is used as fungicide.
P, Q, R and S are respectively

A

Aluminium, carbon, oxygen and phosphorus

B

Copper, oxygen, hydrogen and iodine

C

Carbon, oxygen, nitrogen and sulphur

D

Sulphur oxygen, nitrogen and hydrogen.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to identify the elements P, Q, R, and S based on the information provided: 1. **Identifying Element P**: The question states that P is used in making electrodes. The most common element used for making electrodes is **Carbon**. Therefore, P = Carbon. 2. **Identifying Element Q**: The question states that Q is required for combustion. The primary element required for combustion is **Oxygen**. Therefore, Q = Oxygen. 3. **Identifying Element R**: The question states that R is used to preserve food. A common gas used for food preservation is **Nitrogen**. Therefore, R = Nitrogen. 4. **Identifying Element S**: The question states that S is used as a fungicide. A well-known element used as a fungicide is **Sulfur**. Therefore, S = Sulfur. Now, we can summarize the findings: - P = Carbon - Q = Oxygen - R = Nitrogen - S = Sulfur Thus, the final answer is: P, Q, R, and S are respectively Carbon, Oxygen, Nitrogen, and Sulfur.
Promotional Banner

Topper's Solved these Questions

  • METALS AND NON-METALS

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION (HOTS) |5 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    SCIENCE OLYMPIAD FOUNDATION |Exercise MULTIPLE CHOICE QUESTIONS|20 Videos

  • NSO QUESTION PAPER 2016 SET A

    SCIENCE OLYMPIAD FOUNDATION |Exercise Achievers Section|3 Videos

Similar Questions

Explore conceptually related problems

The inputs and outputs for different time intervals are given below for NAND gate The value taken by P, Q, R, S are respectively

Four metals P, Q, R and S are all obtained by the reduction of their oxides with carbon. Metal P is used to form a thin layer over the sheets of metal S to prevent its corrosion. Metal Q is used for electroplating tiffin boxes made of metal S whereas metal R is used in making car batteries. Metals Q and R form an alloy called solder. what are metals P,Q,R and S? How have you arrived at this conclusion?

Select the correct option which best suits the given descriptions for P, Q, R and S. P - A simple tool used for removing weeds. Q - A tool that is used for ploughing the field. R- A tool that is used for sowing with the help of tractor. S - A simple tool used for cutting of crops.

For a NAND gate the inputs and outputs for different time invervals are given below : The values taken by P,Q,R,S are respectively

Given 'p' and 'q' as true and 'r' as false, the truth values of ~p ^^ (q vv ~r) and (p to q) ^^ r are respectively

Q is the brother of R. P is the sister of Q. T is the brother of S. S is the daughter of R. How is P related to T?