Chemistry - MOST IMPORTANT BPSC PCS Previous Year Questions
Practice real questions from previous year exams of BPSC PCS.
The number of electrons and neutrons in an element is 18 and 20 respectively. Its mass number is
Which of the following is not a type of element?
The pH value of water is
The main component of greenhouse gases is
Oxygen is absent in
Natural rubber is a polymer of
What is the bond order of CO group?
The unit of pressure is
The value of 50 °C in Fahrenheit scale is
The nucleus of an atom consists of
The metallurgical process in which a metal is obtained in a fused state is called
Which among the following is also known as white metal?
Consider the following statements with respect to noble metals: 1. Noble metals are found in pure form in nature. 2. Uranium and lead are examples of noble metal. Which of the above statements is/are correct?
Consider the following statements : 1. Addition of salt to pure water increases the boiling point of water and decreases the freezing point of water. 2. When methyl alcohol is added to water boiling point of water decreases. Which of the above statements is/are correct?
Which among the following would cause the bright red colour due to bursting of crackers?
From the following pairs, find the one which is correctly matched.
The ultimate substance to which the carbohydrates are degraded, is
Most of the enzymes are
What is the law in which under the same conditions of temperature and pressure, equal volumes of all gases contain equal number of molecules?
Some metal oxides react with acid as well as base to produce salt and water. They are known as amphoteric oxides. The examples of amphoteric oxides are