UKPCS Science Chemistry: Chemical compounds #4

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science Chemistry (paper 6). 

CHEMICAL COMPOUNDS

  • Any substance consisting of two or more different types of atoms (chemical elements) in a fixed proportion of its atoms (i.e., stoichiometry) can be termed a chemical compound.
  • Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms, in the case of polyatomic ions) gains or loses electrons.
  • cationis a positively charged ion
  • An anionis a negatively charged ion.

Continue reading “UKPCS Science Chemistry: Chemical compounds #4”

Target UPSC prelims 2019: Daily MCQs #29

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you daily MCQs.

1. Eyes-on and Hands-off policy” was sometimes seen in the news recently, which is associated with which of the following?
a. Japan‘s amendment of its pacifist constitution
b. India‘s policy on online sale of medicines
c. Policy to protect Sentinelese tribes of India
d. U.S.A‘s policy on migrant children
Continue reading “Target UPSC prelims 2019: Daily MCQs #29”

UKPCS Science Chemistry: Compound vs Molecule#3

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science Chemistry (paper 6). 

What is the difference between a compound and a molecule?

  • A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds.
  • Molecular hydrogen (H2), molecular oxygen (O2) and molecular nitrogen (N2) are not compounds because each is composed of a single element. Water (H2O), carbon dioxide (CO2) and methane (CH4) are compounds because each is made from more than one element. The smallest bit of each of these substances would be referred to as a molecule. For example, a single molecule of molecular hydrogen is made from two atoms of hydrogen while a single molecule of water is made from two atoms of hydrogen and one atom of oxygen.

Continue reading “UKPCS Science Chemistry: Compound vs Molecule#3”

Target UPSC prelims 2019: Daily MCQs #28

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you daily MCQs.

1. Consider the following statements with respect to Minimum Support Price (MSP):
1. MSP is determined for the country as a whole and not region or state-specific.
2. Commission for Agricultural Costs and Prices (CACP) approves MSPs for
various crops.
Which of the statement(s) given above is/are
incorrect?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
Continue reading “Target UPSC prelims 2019: Daily MCQs #28”

UKPCS Science Chemistry: Element, metal & non metal #2

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science Chemistry (paper 6). 

What is an element? How many elements are there?

  • An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron. If you change the number of protons an atom has, you change the type of element it is.
  • Currently, scientists know of 118 different elements. Some, like gold, silver, copper and carbon, have been known for thousands of years. Others, such as meitnerium, darmstadtium and ununquadium, have only recently been created by scientists. All known elements are arranged on a chart called the Periodic Table of Elements.
  • These elements can further be classified into metals, non-metals and noble gases.Elements to the left of the line are considered metals. Elements just to the right of the line exhibit properties of both metals and non metals and are termed metalloids or semimetals. Elements to the far right of the periodic table are non metals. 

Continue reading “UKPCS Science Chemistry: Element, metal & non metal #2”

Target UPSC prelims 2019: Daily MCQs #27

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you daily MCQs.

1. Which of the following is/are not a World Heritage Site(s) in India?
1. The Walled city of Jaipur
2. Humayun‟s Tomb, Delhi
3. Great Living Chola Temples at Tamil Nadu
4. Ajanta and Ellora Caves
5. Monuments Forts of Deccan Sultanate
Select the correct answer using the code given below
:

a. 1 only
b. 1 and 2 only
c. 1 and 3 only
d. 1, 2 and 3
Continue reading “Target UPSC prelims 2019: Daily MCQs #27”

Union Budget 2019-20

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you budget 2019-20.

Hi Friends,

After the analysis of the budget, we have compiled a concise document for all the new schemes launched by the government.

The document will be helpful at every level of exam – Prelims, Mains and Interview.

Regards
ORACLE IAS

Click Here: Union Budget 2019-20

Click Here: Union Budget 2018-19

UKPCS Science Chemistry: Atomic structure #1

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science Chemistry (paper 6). 

Atomic structure

All material things are made from atoms. There are just over one hundred different types of atom, called elements. Atoms can join together in millions of different combinations to make all the substances on Earth and beyond.

Continue reading “UKPCS Science Chemistry: Atomic structure #1”

Target UPSC prelims 2019: Daily MCQs #26

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you daily MCQs.

1. Consider the following statements with respect to National Crime Records Bureau (NCRB):
1. It functions as a repository of information on crime and criminals to
assist investigators.
2. It was constituted based on the recommendations of Santhanam
Committee.
3. It functions under the Ministry of Electronics and Information Technology (MeitY).
Which of the statement(s) given above is/are
incorrect?
a. 1 only
b. 3 only
c. 1 and 2 only
d. 2 and 3 only
Continue reading “Target UPSC prelims 2019: Daily MCQs #26”

Target UPSC prelims 2019: Daily MCQs #25

Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you daily MCQs.

1. Regulatory Indicators for Sustainable Energy” (RISE) report was released by which of the following?
a. International Energy Agency
b. World Bank
c. The Energy and Resources Institute

d. United Nations Development Programme Continue reading “Target UPSC prelims 2019: Daily MCQs #25”