What is chemical oxygen demand?

1112

---

What is colorimetry?

1194

---

How is temporary hardness be removed?

1119

---

What is the limitation of cod?

1165

---

How is hardness of water caused?

1175

---

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

1141

---

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

1048

---

Why is ph increases suddenly after the equivalence point?

1076

---

What is photoelectric colorimeter?

1101

---

Why is ammonia solution added while preparing edta solution?

1435

---

What is the unit of conductance?

1106

---

What is the composition of ferroin?

1150

---

What is edta?

1129

---

How is measurement of ph made?

1099

---

What is blank solution?

1134

---