Officerswiki is a free education & learning platform for all students and working professionals, where they can practice multiple choice questions & answers (MCQs). These all MCQs on Officerswiki are FreeMcqs which are helpful in all types of exams such as PPSC, FPSC, CSS, NTS, PMS and UPSC. Read all these questions and answer for your knowledge.
Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy?
A. radio, visible, infrared, ultraviolet, x-ray, gamma ray
B. radio, infrared, visible, x-ray, gamma ray, ultraviolet
C. visible, radio, infrared, ultraviolet, x-ray, gamma ray
D. radio, infrared, visible, ultraviolet, x-ray, gamma ray
“Each electron in an atom must have its own unique set of quantum numbers” is a statement of_______________?
A. Aufbau principle
B. Pauli exclusion principle
C. Hund’s rule
D. Periodic law
One of the following ways of expressing the concentration of a solution does not depend on temperature. It is__________?
A. Molarity
B. Molality
C. Normality
D. Formality
A substance which increases the efficiency of a catalyst is termed as:
A. Promoter
B. Activator
C. Retarder
D. Super catalyst
The amount of energy required by the children of age between one to three years is___________?
A. 300 k Calories
B. 600 k Calories
C. 900 k Calories
D. 1200 k Calories
According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____________?
A. 1 hours
B. 5 hours
C. 10 hours
D. 15 hours
In eye donation, which one of the following parts of the donor’s eye is utilized ?
A. Iris
B. Lens
C. Cornea
D. Retina
The term PVC used in the plastic industry stands for______________?
A. Phospha Vinyl chloride
B. Phosphor vanadium chloride
C. Polyvinyl chloride
D. Polyvinyl carbonate
Human bone does not contain_________?
A. Calcium
B. Chondroitin sulfate
C. Boron
D. phosphate
Which of the following in the human body is affected by leukemia?
A. Blood
B. Lungs
C. Eyes
D. Nerves
The reaction between methane and chlorine in diffused sunlight is__________?
A. Oxidation
B. Reduction
C. Polymerisation
D. Radical substitution
A substance which increases the efficiency of a catalyst is termed, Human bone does not contain?, The term PVC used in the plastic industry stands for, The reaction between methane and chlorine in diffused sunlight is
