Home
Class 12
CHEMISTRY
A: Unit of specific gravity is gram-"cc"...

A: Unit of specific gravity is gram-`"cc"^(-1)`
R: Specific gravity is same as density of a liquid in normal conditions

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion

C

If Assertion is true statement but Reason is false

D

If both Assertion and Reason are false statements

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to evaluate both the assertion (A) and the reason (R) given in the statement. ### Step-by-Step Solution: 1. **Understanding Assertion (A)**: - The assertion states that "the unit of specific gravity is gram-`"cc"^(-1)`". - Specific gravity (SG) is defined as the ratio of the density of a substance to the density of water at a specified temperature (usually 4°C). - The formula for specific gravity is: \[ \text{Specific Gravity (SG)} = \frac{\text{Density of substance}}{\text{Density of water}} \] - Since specific gravity is a ratio of two densities, it is a dimensionless quantity. This means it does not have any units. Therefore, the assertion that the unit of specific gravity is gram-`"cc"^(-1)` is **false**. 2. **Understanding Reason (R)**: - The reason states that "specific gravity is the same as the density of a liquid in normal conditions". - Specific gravity is indeed related to the density of a liquid, but it is specifically the ratio of the density of that liquid to the density of water. Hence, it cannot be said that specific gravity is the same as the density of the liquid; it is a comparative measure. Therefore, the reason is also **false**. 3. **Conclusion**: - Since both the assertion and the reason are false, the correct answer is option D: Both assertion and reason are false statements. ### Final Answer: Both assertion and reason are false. ---
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPT OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT( SECTION - C) Previous Years Questions|46 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION J (Aakash Challenges Questions)|10 Videos

Similar Questions

Explore conceptually related problems

STATEMENTS-1 : Specific gravity is dimensionless. STATEMENTS-2 : Specific gravity is density of a substance measured w.r.t. density of water at 4^(@)C .

The specific gravity of ammonia is ………………… .

A piece of cork whose weight is 19 gm is attached to a bar of silver weighing 63 gm. The two together just not in water. The specific gravity of silver is 10-5. Find the specific gravity of the cork. Density of water = 1 gm cm ^(-3)

wood with specific gravity of less than 0.2 is

A hollow cylindrical container floats in water with half its length immersed. A liquid of specific gravity sigma is slowly poured into the container until the levels of the liquid inside the container and of water outside are the same. It is observed that the container is submerged to two-thirds its length. Then the value of sigma is

Ten litres of a liquid of specific gravity 1.3 is mixed with 6 litres of a liquid of specific gravity 0.8 the specific gravity of mixture is

What is the specific gravity, toxicity and pH range of normal urine?

A cubical block of wood of specific gravity 0.5 and chunk of concrete of specific gravity 2.5 are fastened together. the ratio of mass of wood to the mass of concrete which makes the combination to float with entire volume of the combination submerged in water is

The specific gravity of SO_3 vapour at 0^oC and 76 cmHg in grams/ litre is

wood with specific gravity of less than 0.05 occurs in