A company used talcum powder contains 20% NaAl(SO_(4))_(2), 30% NaHCO_ – InterviewSolution

InterviewSolution

1.	A company used talcum powder contains 20% NaAl(SO_(4))_(2), 30% NaHCO_(3), 10%, Ca(H_(2)PO_(2))_(2) and 40% of starch. Which of the following statements are correct?
Answer» `Ca(H_(2)PO_(4))_(2)` is acidic and when moistened it reacts with `NaHCO_(3)` evolving `CO_(3)` gas. `NAAL(SO_(4))_(2)` shows down the decomposition reaction of `NaHCO_(3)`, so that `CO_(2)` is evolved more SLOWLY. `NaAl(SO_(4))_(2)` is acidic and when moistened it reacts with `NaHCO_(3)` evolving `CO_(2)` gas Both A and B. Answer :A::B::D

Discussion

No Comment Found

Related InterviewSolutions

Which of the following compounds is not cleaved by HI even at 525 K ?
To a 25 mL H_(2)O_(2) solution excess of an acidified solution of potassium iodide was added. The iodine liberated required 20 " mL of " 0.3 N sodium thiosulphate solution Calculate the volume strength of H_(2)O_(2) solution.
The suggested mechanism of a reaction is : (a) A+BhArrD("fast) "(b)A+Drarr2C("slow")Write the balanced equation of the reaction if its experimentally deduced rate equation is , rate k=[A]^(2)[B] Find the intermediate formed during the course of the reaction . Does the predicted rate law from the mechanism match the experimental rate law ?
Which of these changes with time for a first-order reaction A Rate of reaction B . Rate constant C . Half-life
What is the hybridisation of central atom in the product obtained along with hydrofluoric acid when complete hydrolysis of Xenon Hexa Fluoride takes place ?
Which of the following amino acid forms sulphide bond in polypeptide
Which of following pair is Diastereomers:
What is the major product of the following reaction CH_3C-=C-CH_2-CH_3overset("1 mole of " Cl_2)to
Which polymer is used in petrol tank linings ?
Which of the following carbohydrates are branched polymer of glucose ?