Q.1:- The substrate of Photorespiration is ?
- Fructose
- Pyruvic Acid
- Glycolate
- Glucose
Q.2:- Beri-Beri is caused due to ?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Q.3:- Picric acid is a yellow coloured compound. Its chemical name is ?
- Trinitrobenzene
- 2, 4, 6 – Trinitrophenol
- Trinitrotoluene
- Trinitroaniline
Q.4:- Deficiency of which one of the following cause knock knee, bow legs and pigeon chest in children ?
- Vitamin A
- Vitamin B2
- Vitamin D
- Vitamin E
Q.5:- Main source of lead pollution is from ?
- Sewage
- Leaded Gasoline
- Tobacco
- Insecticides
Q.6:- Yeast is an important source of ?
- Vitamin C
- Protein
- Vitamin B
- Invertase
Q.7:- Which of the following is found in cod liver oil ?
- Vitamin C
- Vitamin E
- Vitamin A
- Vitamin B1
q.8:- Glucose is a type of ?
- Pentose Sugar
- Tetrose Sugar
- Hexose Sugar
- Diose Sugar
Q.9:- Vitamin B1 is known as ?
- Pyridoxine
- Thiamine
- Tocopheral
- Riboflavin
Q.10:- Denatured spirit is mainly used as a ?
- Drug
- Good Fuel
- Material in preparing
- Solvent in preparing varnishes
Q.11:- Glucose and fructose are converted into C2H5OH in presence of ?
- Invertase
- Diastase
- Zymase
- Lipids
Q.12:- Which of the following acids is present in vinegar ?
- Hydrochloric Acid
- Acetic Acid
- Tartaric Acid
- Citric Acid
Q.13:- Tollen’s reagent is ?
- Alkaline mercuric chloride
- Alkaline potassium permanganate
- Ammonical Silver Nitrate
- Ammonium Citrate
Q.14:- Acetone is mixed with bleaching powder to give ?
- Chloroform
- Acetaldehyde
- Ethanol
- Phosgene
Q.15:- Which one is not metal ?
- Sulphur
- Sugar
- Nitrogen
- All of above
Q.16:- How many electrons are there in Na+ ?
- 1
- 10
- 11
- 12
Q.17:- The absolute value of charge on electron was determined by ?
- J. Thomson
- A. Millikan
- Rutherford
- Chadwick
Q.18:- The constituent particle of a nucleus in an atom are ?
- Electron and Proton
- Proton and Neutron
- Electron and Neutron
- Electron, Proton and Neutron
Q.19:- Radioactive isotope of Hydrogen is ?
- Protium
- Deuter
- Tritium
- All of the above
Q.20:- A particle which is similar to electron is ?
- Positron
- Beta Particle
- Photon
- Mason
Q.21:- The first indication that a stable nucleus can be broken down was afforded by ?
- Rutherford
- Madam Curie
- Soddy
- Schmidt
Q.22:- The difference between a nuclear reactor and atomic bomb is that ?
- No chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction
- The chain reaction in nuclear reactor is controlled
- The chain reaction in nuclear reactor is not controlled
- No-chain reaction takes place in atomic bomb while it takes place in nuclear reactor
Q.23:- Which one has linear structure ?
- NO2
- CO2
- SO2
- SiO2
Q.24:- Oxidation is defined as ?
- Loss of electrons
- Gain of electrons
- Gain of protons
- Loss of protons
Q.25:- The Oxidation state of Cr in [Cr(NH3)4)Cl2]+ is ?
- +3
- +2
- +1
- 0