B.tech 1st Year Chemistry Lab Viva Questions And Answers May 2026

Always state the units (N, M, ppm, or ml) when giving an answer.

Molar (M): Moles of solute per liter of solution.

The reaction between EDTA and metal ions is pH-dependent. A pH of 10 ensures the EBT indicator works correctly and the complex remains stable. B.tech 1st Year Chemistry Lab Viva Questions And Answers

What were included in your lab syllabus?

For colorless liquids, read the lower meniscus; for colored liquids, read the upper one. Always state the units (N, M, ppm, or

The presence of dissolved bicarbonates of calcium and magnesium. It can be removed by boiling.

The lowest temperature at which a lubricant gives off enough vapor to ignite momentarily when a flame is applied. Always state the units (N

Gram equivalents of solute per liter of solution.