0.5 mole of nitrogen gas and 0.5 mole of carbon monoxide gas at STP have same_____________?
A. Value of a B. Mass C. Atoms D. Both B and C
Chemistry MCQs
Which of the following option is incorrect about gases ?
A. All molecules move with same speed B. All molecules behave independently C. PV / RT = n D. All gases cannot be liquefied through Linds Method
In how many forms do matter exists ?
A. Three B. Four C. Five D. Two
What is the abundant form of matter on earth ?
A. Gas B. Liquid C. Solid D. Plasma
For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?
A. 1/2dm3 B. 1/3dm3 C. 1/4dm3 D. 2/3dm3
Which one is the right value for R ?
A. 0.0821 atm dm3k-1mol- B. 0.0821 atm m3k-1mol-1 C. 2 cal k-1 mol-1 D. 8.314 Nm2k-1mol-1
The partial pressure exerted by the water vapours is called_______________?
A. Surface tension B. Aqueous tension C. Vapour pressure D. Hydraulic pressure
The spreading of fragrance or scent in air is due to_______________?
A. Diffusion B. Effusion C. Attraction with air D. Low dsensity
The highest temperature at which a substance can exist as a liquid is called its______________?
A. Critical temperature B. Standard temperature C. Absolute temperature D. Upper consulate temperature
What do we call to sudden expansion of plasma ?
A. Avogadros law B. Grahams law of diffusion C. Joule Thompson effect D. Daltons law of partial pressure