Q.1:- Why are noble gases are called so ? [CDS Exams 2006]
- They react quickly with other compound
- Due to their chemical inertness
- They react only with Carbon compound
- They can produce Oxygen
Q.2:- The most reactive among the Halogen is ? [IAS Exam 1997]
Q.3:- Among the Halogens, the one which is oxidized by Nitric Acid is ?
Q.4:- The gas obtained by radioactive disintegration of radium (226) is ?
Q.5:- On adding little phosphorous to Silicon, we get ?
- N-Type Semiconductor
- P-Type Semiconductor
Q.6:- “Kelp” is ? [SSC CGL Exam 2014]
- Sulphide Mineral of Iron
- Partially Decomposed Vegetation
- Sea Weed Rich in Iodine Content
- An Aluminium Silicate Mineral
Q.7:- The chromatography technique was developed by ?
- Victor Grignard
Q.8:- Azeotropic mixtures ?
- Boil at different temperature
- Are mixtures of solids
- Are constant boiling mixtures
- None of the above
Q.9:- Which one of the following is the Heterocyclic compound ?
Q.10:- The alkanes have a general formula ?
Q.11:- Glucose has how many optical isomers ?
- Cannot be predicted
Q.12:- The isomerism observed in Alkanes is ?
- Chain Isomerism
- Position Isomerism
- Geometrical Isomerism
Q.13:- Octane number of a fuel can be increased by ?
- All of the above
Q.14:- Iso-Octane is added to petrol ?
- To precipitate inorganic material
- To prevent freezing of petrol
- To increase the boiling point
- As an anti-knocking agent
Q.15:- Acidic Hydrogen is present in ?
Q.16:- Chloral is ?
Q.17:- Catalytic reduction of water gas gives ?
Q.18:- Chloropicrin is ?
- Picric Derivative
- Nitroethyl Chloride
Q.19:- Fisher-Tropsch process is used in the manufacture of ?
- Synthetic Petrol
Q.20:- Kerosene is a mixture of ?
- Aromatic Hydrocarbons
- Aliphatic Hydrocarbons
- Saturated Hydrocarbons
- Alicyclic Hydrocarbons
Q.21:- Grain alcohol is common name of ?
- Amyl Alcohol
- Ethyl Alcohol
- None of these
Q.22:- The group reagent for the test of alcohols is ?
- Ceric Ammonium Nitrate
- Schiff’s Reagent
- Molisch’s Reagent
- Bromine Water
Q.23:- Which of the following is not a fatty acid ?
- Stearic Acid
- Palmitic Acid
- Propionic Acid
- Phenyl Acetic Acid
Q.24:- The factor adversely affecting the fermentation process is ?
- Presence of air
- Low concentration of sugar
- High concentration of sugar
- Presence of an enzyme
Q.25:- Paraffin Wax is ?
- An Ester
- A long chain acid
- Monohydric alcohol
- A mixture of higher alkanes