Formula of ‘Acetonitrile’ is :
The pH range is from ….. to ……
pH range is from 0 to 14.
Permanent hardness in water is due to presence of the …………………………………. salts of calcium (Ca) and magnesium (Mg) :
Due to over eating, which below type of medicine treats indidigestion:
Sodium Hydrogen Carbonate (NaHCO3) is used as :
A white powder is a homogeneous mixture of common salt (NaCl) and ammonium chloride (NH4Cl). Both can be easily separated by :
Volume of 1 litre water is equal to :
1 dm = 10 cm.
A container having dimension of 10 cm x 10 cm x 10 cm ( l x b x h ) has the capacity of 1000 mL or 1 lire.
If a HPLC analysis of 15 hours has flow rate of 1 mL/ min. Then minimum required amount of solvents will be :
15 hours x 60 = 900 min
1 mL/ min Flow x 900 min = 900 mL
900 mL / 1000 = 0.9 L
To calculate the quantity for 33% of 200 mL solvent, the calculation will be :
In the lab, analyst measueres optical activity of a compund by using ‘Polarimeter’ instrument. Lamp in polarimeter is of :
For UV, the sample holder UV-cuvette is made of :
ATC Probe in pH meter stands for :
In reverse-phase chromatography, the mobile phase is ……..
Which is not a separation technique :
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