Q. The term pH denotes the -
1) Temperature of solution
2) Vapour pressure of solution
3) Acidity or Basicity of solution
4) Ionic strength of solution
Q. DDT is the name of a chemical that can be used as a/an -
1) Antiseptic
2) Insecticide
3) Antibiotic
4) Fertilizer
Q. Ethanol containing 5% water is known as -
1) Absolute alcohol
2) Dilute alcohol
3) Power alcohol
4) Rectified spirit
Q. The percentage of nitrogen present in ammonia sulphate is -
1) 18%
2) 21%
3) 25%
4) 30.5%
Q. Stains Of rust on clothes can be removed by -
1) H2O2
2) Oxalic acid
3) Petrol
4) Alcohol
Q. Transboundary pollution (or) Acid rain is caused by:
1) Nitrogen oxide and sulphur dioxide
2) Carbon monoxide
3) Carbon dioxide
4) Hydrocarbon
Q. Which of the following is the most dangerous pollutant?
1) Carbon dioxide
2) Sulphur dioxide
3) Carbon monoxide
4) Nitrous oxide
Q. Which of the following is an acid?
1) H2O
2) Na2CO3
3) HZSO4
4) NaCl
Q. The expansion of D.D.T is
1) Dichloro Diphenyl Trichloroethane
2) Dichloro Diamine Trichloroethane
3) Dichloro Diphenyl Tetrachloroethane
4) None of these
Q. In an intrinsic semiconductor, the number of free electrons
1) Equals the number of holes
2) Is less than the umber of holes
3) Is greater than the number of holes
4) Impossible to say
Interior design is a fun and creative field. It mixes art and practicality to make spaces look good and work well. With more people wanting great places to live and work, the need for skilled interior designers is rising. Let’s look at what it takes to have a career in interior design, including nee →
Foundation Date: December 8, 1991 Headquarters: The Republic of Belarus Executive Secretaries: Sergei Lebedev Member Countries: 12 Commonwealth of Independent States (CIS) was established on December 8, 1991, and the leaders of the Republic of Belarus, the Russian Federation, and Ukraine signed an a →
In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →
Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts & orders that have hitherto handled food-related issues in various Ministries →
If you contribute your content to our site. Please mail us your content to editor@onlinegk.net