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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
Depression in freezing point - Physical methods for Non-volatile substances Mol. Mass = (1000 K f * w) /W* ΔT Where, K f stands for Molal depression constant of the solve
calculate M of 3m solution of NaCl of density of 1.05 gm/ml
Q. Define Conjugate acid-base pair and buffer? Buffers are substances that resist changes in pH. To "balance pH" means to buffer. Weak acids and bases make good buffers.
How can we make best use of marigold flowers
Where is tin obtained? Ans) Tin is obtained in several places tin is found mainly in the ore cassiterite, which is originate in Malaysia, Bolivia, Thailand, and Nigeria.
Q. Name the various steps required for making water suitable for domestic use. Ans. Treatment process for domestic use S . No . Process use for tr
Q. Describe about Nuclei and Radioactive Decay? Dalton consideration that atoms were unchangeable. But scientists in the late nineteenth century began to notice that some eleme
stability of cr3+ions from fe3+ions in aqueous medium
uses of potassium oxalato aluminate
solution and collegative properties explanation
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