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- Question
What are the two types of pure substances?
- Correct Answer
- An atom is the smallest particle of a substance Chemical substances are divided into two major groups They are 1 Pure Substances (and) 2 Mixtures There are two types of pure substances that are Elements and Compounds Elements : An element is a substance that is made up of only one kind of atoms and cannot be broken down into simpler substances by chemical means Metals and Non- metals come under elements Examples of elements are Iron, Silver, Gold, Mercury etc Compounds : A Compound is a substance that is formed when two or more elements combine chemically Examples of compounds are Water, Carbon dioxide, methane, vinegar etc Mixtures : A Mixture is formed when two or more substances mixed together but not chemically combined Example: Air
- 1. United Nations adapted a Charter of Economic Rights in the year
Options- A. 1969
- B. 1974
- C. 1956
- D. 1964 Discuss
- 2. The intersecting lines drawn on maps and globes are
Options- A. latitudes
- B. longitudes
- C. geographic grids
- D. None of the above Discuss
- 3. The budget deficit means
Options- A. the excess of total expenditure, including loans, net of lending over revenue receipts
- B. difference between revenue receipts and revenue expenditure
- C. difference between all receipts and all the expenditure
- D. fiscal deficit less interest payments Discuss
- 4. The infrared radiation by sun are strongly absorbed by
Options- A. carbon dioxide
- B. water vapours
- C. carbon dioxide and water vapours
- D. ozone Discuss
- 5. The Board of Industrial and Financial Reconstruction (BIFR) came into existence in
Options- A. 1984
- B. 1986
- C. 1987
- D. 1989 Discuss
- 6. Eugenics is the study of
Options- A. altering human beings by changing their genetic components
- B. people of European origin
- C. different races of mankind
- D. genetic of plants Discuss
- 7. The highest mountains in Africa, which is not part of any mountains chain, is
Options- A. Mt. Aconcagua
- B. Mt. Kilimanjaro
- C. Mt. Kosciuszko
- D. Mont Blanc Discuss
- 8. How many former republics of USSR have become members of the Commonwealth of Independent States?
Options- A. 11
- B. 10
- C. 12
- D. 9 Discuss
- 9. The length of the tropical years (the time interval between successive occurrences of the spring equinox) is decreasing very slowly as a result of
Options- A. small, progressive changes in the earth's rotational speed
- B. small, progressive change in earth's orbit around the sun
- C. both (a) and (b)
- D. None of the above Discuss
- 10. The term Khalisa in Mughal administration signified the
Options- A. entire Imperial establishment
- B. land owned b the emperor himself
- C. religious land grants
- D. land from where revenue was collected for the Imperial Treasury Discuss
More questions
Correct Answer: 1974
Correct Answer: geographic grids
Correct Answer: difference between all receipts and all the expenditure
Correct Answer: carbon dioxide
Correct Answer: 1987
Correct Answer: altering human beings by changing their genetic components
Correct Answer: Mt. Kilimanjaro
Correct Answer: 11
Correct Answer: both (a) and (b)
Correct Answer: land owned b the emperor himself
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