Question

2%of the items of a factor are defective the items are packed in box what is the probability that there will be 2 defective items in a box of 100​Use your brain power!
Complete the table below, showing
how substances of daily use are
classified
Substances in daily use
Man-made
Abiotic
Plant origin
Leather
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₹ 50 for his service call , plus an additional charge ₹36 per hour for labour. The second plumber12%of the items of a factor are defective the items are packed in box what is the probability that there will be 2 defective items in a box of 100​Use your brain power!
Complete the table below, showing
how substances of daily use are
classified
Substances in daily use
Man-made
Abiotic
Plant origin
Leather
where is the answerSuhana said ",multiplying my number by 5 and adding 8to it gives the same answer as subrating my number from 20",find suhana's numberSuhana said ",multiplying my number by 5 and adding 8to it gives the same answer as subrating my number from 20 ok 2%of the items of a factor are defective the items are packed in box what is the probability that there will be 2 defective items in a box of 100​Use your brain power!
Complete the table below, showing
how substances of daily use are
classified
Substances in daily use
Man-made
Abiotic
Plant origin
Leather
where is the answerSuhana said ",multiplying my number by 5 and adding 8to it gives the same answer as subrating my number from 20",find suhana's numberSuhana said ",multiplying my number by 5 and adding 8to it gives the same answer as subrating​

Answer 1

NH4OH and NaOH can be distinguished by using calcium salts.

For example on adding NaOH to Ca(NO3)2, Ca(OH)2 is obtained as white precipitate which is sparingly soluble in excess of NaOH.

Ca(NO3)2 + 2NaOH → Ca(OH)2 + 2NaNO3

On addition of NH4OH to calcium salts, no precipitation of Ca(OH)2 occurs even with the addition of excess of NH4OH.This is because the concentration of OH– ions from the ionization of NH4OH is so low that it cannot precipitate the hydroxide of calcium.