Q.1:- Proteins given purple colour with ?
- Benedict’s reagent
- Iodine Solution
- Ninhydrin Reagent
- Biuret
Q.2:- Vitamin B2 is also known as ?
- Riboflavin
- Pyridoxin
- Ascrobic Acid
- None of these
Q.3:- The human body does not produce ?
- Vitamins
- Enzymes
- Proteins
- Hormones
Q.4:- The alkaloid naturally found in coffee, cocoa and colanut is ? [SSC CGL Exam 2014]
- Cocaine
- Morphine
- Tannin
- Caffeine
Q.5:- Amino acids present in insulin are ?
- 21
- 51
- 30
- 102
Q.6:- Which one of the following allotropes of the carbon is used in cutting and drilling ? [CDS Exam 2006]
- Diamond
- Graphite
- Activated Charcoal
- Carbon Black
Q.7:- The digestion of fat in intestine is aided by ?
- Diffusion
- Peptization
- Emulsification
- Neutralization
Q.8:- The function of enzymes in the living system is to ?
- Transport Oxygen
- Provide Immunity
- Catalyse Bio-Chemical Reactions
- Provide Energy
Q.9:- Charring of sugar is due to ?
- Oxidation
- Reduction
- Dehydration
- Reduction and Hydration
Q.10:- Which one of the following Vitamins is essential for coagulation for blood ? [CDS Exam 2006]
- Vitamin A
- Vitamin B12
- Vitamin K
- Vitamin D
Q.11:- The process of improving the quality of rubber by heating it with Sulphur is called ? [SSC Exams 2014]
- Vulcanization
- Acceleration
- Sulphonation
- Galvanization
Q.12:- London smog is found in ?
- Summer during day time
- Summer during morning time
- Winter during morning time
- Winter during day time
Q.13:- What are the types of bonds present in CuSO4.5H2O ? [NDA Exams 2007]
- Electrovalent and Covalent
- Electrovalent and Coordinate
- Electrovalent, Covalent, Coordinate and Hydrogen Bond
- Covalent and Coordinate Covalent
Q.14:- A base is a substance which ?
- Is better in taste
- Gives OH– ions in aqueous solution
- Can donate electron
- All of the above
Q.15:- Which of the following types of materials act as effective catalysts ?
- Alkali Metals
- Transition Metals
- Alkaline Earth Metals
- Radioactive Metals
Q.16:- TEL minimize the knocking effect when mixed with petrol, it acts as ?
- Positive Catalyst
- Negative Catalyst
- Auto Catalyst
- Induced Catalyst
Q.17:- Which law of thermodynamics introduces the concept of entropy ?
- First Law
- Zeroth Law
- Third Law
- Second Law
Q.18:- Ionization energy of Nitrogen is greater than that of Oxygen because Nitrogen has ? [SSC Exams 2013]
- High bond dissociation energy
- Smaller atomic radius
- Stable half-filled 2p sub level
- High nuclear charge
Q.19:- Which inorganic precipitate acts as semipermeable membrane ?
- Calcium Sulphate
- Barium Oxide
- Nickel Phosphate
- Copper Ferrocyanide
Q.20:- A solution is ? [SSC Exam 2014]
- A homogenous mixture of two or more substances
- A solid dissolved in a liquid
- A solid dissolved in water
- A mixture of two liquids
Q.21:- When a solution is separated from a solvent by a semipermeable membrane then phenomenon taking place is called ?
- Osmosis
- Diffusion
- Plasmolysis
- None of the above
Q.22:- Eosin used to detect the end point of precipitation titration by adsorption is called ?
- Absorption indicator
- Adsorption indicator
- Normal indicator
- Chemical indicator
Q.23:- A photochemical reaction is ?
- Catalysed by light
- Initiated by light emission
- Accompanied with light
- Accompanied with absorption of light
Q.24:- Asbestos is a silicate mineral of calcium and ?
- K
- Al
- Ba
- Mg
Q.25:- In contact process, the gas produced is ? [SSC Exam 2013]
- Nitric Oxide
- Nitrous Oxide
- Sulphur Trioxide
- Ammonia
