What is chemical oxygen demand?

1063

---

What is colorimetry?

1141

---

How is temporary hardness be removed?

1080

---

What is the limitation of cod?

1135

---

How is hardness of water caused?

1138

---

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

1105

---

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

1001

---

Why is ph increases suddenly after the equivalence point?

1040

---

What is photoelectric colorimeter?

1039

---

Why is ammonia solution added while preparing edta solution?

1392

---

What is the unit of conductance?

1064

---

What is the composition of ferroin?

1105

---

What is edta?

1077

---

How is measurement of ph made?

1061

---

What is blank solution?

1094

---