Download App

Solutions — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistrySolutions1 Mark
MCQ
Identify which of the following statements is FALSE.
  • A
    The vapor pressure of a liquid decreases with increasing atmospheric pressure.
  • B
    The value of an equilibrium constant is dependent on temperature.
  • C
    The rate of a spontaneous reaction cannot be determined solely by its Gibbs free energy.
  • D
    During a phase transition, the temperature of a substance must be constant.
✓

Answer

  1. During a phase transition, the temperature of a substance must be constant.

Explanation:

During phase transition, temperature is taken on the x-axis of the phase transition curve, hence, during phase transition the temperature of substance changes.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from Solutions→Solutions — all question types→Chemistry STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Which is used as an anaesthetic during surgery?
→
Titanium oxide is added in interior paints for walls of rooms, halls and galleries to give:
→
Coordination number of Co in the complex $\left[ Co [ en ]_2\left( NH _3\right)_2\right] Br _3( CN )$ is :
→
If 2gm of NaOH is present is 200ml of its solution, its molarity will be:
→
The colour of blood is red due to the presence of:
→
Paracetamol used as:
→
Which of the following is the most reactive towards nucleophilic substitution reaction?
→
The more negative the standard potential, the .............. is its ability to displace hydrogen from acids.
→
The order of decreasing stability in 1-butene (I), cis-2-butene (II) and trans-2-butene is:
→
Among the sugar mentioned below, name the sweetest one :
→