The chemical name of calgon is:
Show Hint
- Sodium hexametaphosphate
- Potassium hexametaphosphate
- Calcium hexametaphosphate
- Sodium hexametaphosphate
The Correct Option is D
Solution and Explanation
Calgon is a water softener used to prevent the formation of scale in boilers.
It is chemically known as sodium hexametaphosphate (\( Na_6P_6O_{18} \)).
Step 2: Role in Water Softening
It sequesters \( Ca^{2+} \) and \( Mg^{2+} \) ions by forming soluble complexes, preventing their precipitation.
Final Answer: The chemical name of calgon is sodium hexametaphosphate.
Top Questions on Alkenes
Which of the following alkenes is most stable?
- Ferrocene is:
An alkene X (\( C_4H_8 \)) on reaction with HBr gave Y (\( C_4H_9Br \)). Reaction of Y with benzene in the presence of anhydrous \( AlCl_3 \) gave Z which is resistant to oxidation with \( KMnO_4 + KOH \). What are X, Y, Z respectively?
- An alkene X (\( C_4H_8 \)) does not exhibit cis-trans isomerism. Reaction of X with \( Br_2 \) in the presence of UV light gave Y. What is Y?
The alkane which is next to methane in the homologous series can be prepared from which of the following reactions?
Questions Asked in BITSAT exam
Evaluate the following limit: $ \lim_{n \to \infty} \prod_{r=3}^n \frac{r^3 - 8}{r^3 + 8} $.
- BITSAT - 2024
- limits and derivatives
- Inside a solenoid of radius \( 0.5 \) m, the magnetic field is changing at a rate of \( 50 \times 10^{-6} \) T/s. The acceleration of an electron placed at a distance of \( 0.3 \) m from the axis of the solenoid will be:
- BITSAT - 2024
- thermal properties of matter
In the given cycle ABCDA, the heat required for an ideal monoatomic gas will be:
- BITSAT - 2024
- specific heat capacity
- If \( a, c, b \) are in GP, then the area of the triangle formed by the lines \( ax + by + c = 0 \) with the coordinate axes is equal to:
- BITSAT - 2024
- Vectors
A particle is moving in a straight line. The variation of position $ x $ as a function of time $ t $ is given as:
$ x = t^3 - 6t^2 + 20t + 15 $.
The velocity of the body when its acceleration becomes zero is:- BITSAT - 2024
- thermal properties of matter