Answer
Verified
25.8k+ views
Hint: Slaked lime ${ Ca(OH) }_{ 2 }$ is a white amorphous powder of calcium hydroxide. It is a colorless crystal or white powder and is sparingly soluble in water.
Complete step-by-step answer:
${ Ca(OH) }_{ 2 }$: It is prepared when quick lime is mixed with water.
A. Bleaching powder can be prepared when dry slaked lime is treated with chlorine gas. The following reaction will take place:
Hence, ${ Ca(OH) }_{ 2 }$ is used in the preparation of bleaching powder.
B. Slaked lime is a whitish colored powder not a light blue solid. So, this statement is incorrect.
C. Disinfectants are meant to destroy microorganisms that can infect non-living objects. These are commonly used on household items to protect germs and colds from spreading to people. Slaked lime possesses the disinfectant property.
D. Slaked lime is made from quicklime and water. Quicklime can be used in the manufacture of cement, hence slaked lime can be used in the manufacturer of cement as well. So, this statement is true.
The correct answer is A and D.
Note: The possibility to make a mistake is that you may not choose option D. As we know slaked lime is used in the preparation of bleaching powder but it is also used in the manufacture of cement.
Complete step-by-step answer:
${ Ca(OH) }_{ 2 }$: It is prepared when quick lime is mixed with water.
A. Bleaching powder can be prepared when dry slaked lime is treated with chlorine gas. The following reaction will take place:
${ 2Ca(OH) }_{ 2 }{ +2Cl }_{ 2 }{ \rightarrow CaCl }_{ 2 }{ +Ca(OCl) }_{ 2 }{ +2H }_{ 2 }{ O }$
Hence, ${ Ca(OH) }_{ 2 }$ is used in the preparation of bleaching powder.
B. Slaked lime is a whitish colored powder not a light blue solid. So, this statement is incorrect.
C. Disinfectants are meant to destroy microorganisms that can infect non-living objects. These are commonly used on household items to protect germs and colds from spreading to people. Slaked lime possesses the disinfectant property.
D. Slaked lime is made from quicklime and water. Quicklime can be used in the manufacture of cement, hence slaked lime can be used in the manufacturer of cement as well. So, this statement is true.
The correct answer is A and D.
Note: The possibility to make a mistake is that you may not choose option D. As we know slaked lime is used in the preparation of bleaching powder but it is also used in the manufacture of cement.
Recently Updated Pages
To get a maximum current in an external resistance class 1 physics JEE_Main
If a wire of resistance R is stretched to double of class 12 physics JEE_Main
Let f be a twice differentiable such that fleft x rightfleft class 11 maths JEE_Main
Find the points of intersection of the tangents at class 11 maths JEE_Main
For the two circles x2+y216 and x2+y22y0 there isare class 11 maths JEE_Main
The path difference between two waves for constructive class 11 physics JEE_MAIN
Other Pages
Formula for number of images formed by two plane mirrors class 12 physics JEE_Main
The mole fraction of the solute in a 1 molal aqueous class 11 chemistry JEE_Main
The area enclosed between the velocitytime sketch and class 11 physics JEE_Main
Excluding stoppages the speed of a bus is 54 kmph and class 11 maths JEE_Main
Differentiate between audible and inaudible sounds class 11 physics JEE_Main
Electric field due to uniformly charged sphere class 12 physics JEE_Main