Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?

1104

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When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?

983

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Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?

1115

---

What is german silver?

858

---

What is phase transfer catalyst?

1053

---

Why titration in which hcl and h2so4 is use?

1030

---

However ozone is heavier than oxygen still ozone is up there in sky why?

1025

---

What is mineral water?

1020

---

WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1147

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CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1164

---

What is the unit of ph?

975

---

What is kentchin?

991

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Give the IUPAC name for [Co(NH3)5Cl] SO4

1043

---

Give the IUPAC name for [Co(NH3)5SO4]Cl

1217

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How can we find that which type hybridyzation in perticular compound like in CH4(hy is sp3)?

1063

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