GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 069

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 069

681). Match list I with list II correctly and select your answer using the codes given below:
List l                                         List II
a) Nuclear fission                   1) Helium
b) Nuclear fusion                   2) Medicine
c) Radio isotope                    3) Hydrogen bomb
d) alpha rays                         4) Atomic bomb

Codes:
a b c d
A). 4 3 2 1
B). 3 1 4 2
C). 4 1 3 2
D). 1 3 4 2

Answer: 4 3 2 1


   
682). Compound that decolorises bromine water is
A). ethane
B). benzene
C). acetylene
D). ethanol

Answer: acetylene


   
683). Power alcohol is a mixture of
A). ethyl alcohol + petrol
B). methyl alcohol + petrol
C). ethyl alcohol + methyl alcohol
D). petrol + ether

Answer: ethyl alcohol + petrol


   
684). Which one of the following is a transition element?
A). helium
B). sodium
C). copper
D). fluorine

Answer: copper


   
685). The isotope 7N^14 contains
A). 7 electrons
B). 7 protons
C). 7 neutrons
D). all of these

Answer: all of these


 
686). An atom-of chlorine with atomic number 17 and mass number 35, contains in its nucleus
A). 18 protons
B). 18 neutrons
C). 35 neutrons
D). 35 protons

Answer: 18 neutrons


   
687). Starch on hydrolysis gives
A). CO2 and H2O
B). Fructose
C). Sucrose
D). Glucose

Answer: Glucose


   
688). Which of the following helps the fermentation process?
A). keeping the temperature of the reaction low
B). leaving the reaction for a few days
C). heating the reaction
D). adding enzymes

Answer: adding enzymes

   
689). Methylated spirit is
A). ethyl alcohol containing 5% methyl alcohol
B). 100% methyl alcohol
C). 95% ethanol
D). absolute alcohol

Answer: ethyl alcohol containing 5% methyl alcohol

   
690). Stainless steel is an alloy of
A). steel + chromium + nickel
B). steel +,silver + nickel
C). steel + nickel + aluminium
D). steel + chromium + aluminium

Answer: steel + chromium + nickel