Practice Questions

TLS Online TPP Program

#Question id: 334

Which of the following statements about hydrogen bonding is not true?

#SCPH06 I Botany

In liquid water, the average water molecule forms hydrogen bonds with three to four other water molecules.
Hydrogen bonds account for the anomalously high boiling point of water.
Individual hydrogen bonds in liquid water exist for many seconds and sometimes for minutes.
The strength of a hydrogen bond depends on the linearity of the three atoms involved in the bond.

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TLS Online TPP Program

#Question id: 347

#I Life Science/ Life Sciences Group – I-V

A beaker contains 100 milliliters (mL) of NaOH solution at pH = 13. A technician carefully pours into the beaker 10 mL of HCl at pH = 1. Which of the following statements correctly describes the result of this mixing?

TLS Online TPP Program

#Question id: 18371

#SCPH01 Biochemistry

Macadamia plant can be used for remediation of which metal ions?

TLS Online TPP Program

#Question id: 14352

#SCPH05 I Biotechnology

The viscosity of a fluid changes with either stirrer speed or mixing time. But when mixing ceases, the viscosity returns to its original state. This fluid is best described as

TLS Online TPP Program

#Question id: 3865

#SCPH06 I Botany

Which of the following statements about E. coli RNA polymerase is false?