What is chemical oxygen demand?

1060

---

What is colorimetry?

1136

---

How is temporary hardness be removed?

1071

---

What is the limitation of cod?

1128

---

How is hardness of water caused?

1133

---

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

1100

---

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

997

---

Why is ph increases suddenly after the equivalence point?

1034

---

What is photoelectric colorimeter?

1035

---

Why is ammonia solution added while preparing edta solution?

1390

---

What is the unit of conductance?

1059

---

What is the composition of ferroin?

1099

---

What is edta?

1074

---

How is measurement of ph made?

1056

---

What is blank solution?

1092

---