Q. Which one of the following is the softest?
1) Aluminium
2) Sodium
3) Lithium
4) Iron
Q. The compound which contains both ionic and covalent bonds is -
1) CH4
2) H2
3) NaCl
4) KCN
Q. Number of different oxides formed by nitrogen is -
1) four
2) two
3) four
4) three
Q. The element which form amphoteric oxides is -
1) antimony
2) bismuth
3) sodium
4) phosphorous
Q. The single acid which dissolves gold is -
1) Nitric acid
2) Hydrochloric acid
3) Selenic acid
4) Aqua regia
Q. Rectified spirit is a -
1) mixture of 95%, ethanol + 5% methanol
2) mixture of 95% ethanol + 5% H2O
3) mixture of 95% ethanol + 5% pyridine
4) 100% ethanol
Q. One of these substance contains no oxygen. which one?
1) cryolite
2) bauxite
3) dolomite
4) epsom salt
Q. Electrostatic precipitator is used to control
1) Chemical Pollutants
2) Radio-active Pollutants
3) Water Pollutants
4) Air Pollutants
Q. Alcoholic (-OH) group can be identified by:
1) Tollen's Readent Test
2) FeCl3 Test
3) Ozonolysis Reaction
4) Esterification Test
Q. Which gas is used for converting vegetable oils into saturated fats?
1) H2
2) O2
3) Cl2
4) SO2
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