What is chemical oxygen demand?

999

---

What is colorimetry?

1071

---

How is temporary hardness be removed?

1012

---

What is the limitation of cod?

1059

---

How is hardness of water caused?

1074

---

What is the bluish white precipitate formed after adding ammonia solution?

1046

---

Which is the indicator used in the determination of cao I cement solution?

931

---

Why is ph increases suddenly after the equivalence point?

981

---

What is photoelectric colorimeter?

977

---

Why is ammonia solution added while preparing edta solution?

1332

---

What is the unit of conductance?

1008

---

What is the composition of ferroin?

1045

---

What is edta?

1017

---

How is measurement of ph made?

1000

---

What is blank solution?

1040

---