Practice Test


Q1) Ultraviolet rays can be checked by Show Answer


Q2) Optical glasses are made from Show Answer


Q3) Glass is a homogeneous mixture of Show Answer


Q4) Chrome yellow is Show Answer


Q5) Pyrex glass is a mixture of Show Answer


Q6) Thomas slag is Show Answer


Q7) Composition of glass is Show Answer


Q8) Optical glass contains a high percentage of Show Answer


Q9) Lead sulphate is soluble in Show Answer


Q10) The oxide having amphoteric character is Show Answer


Q11) The variety of glass used in making lenses and prisms is Show Answer


Q12) Which of the following is coloured ? Show Answer


Q13) Quartz watches contain Show Answer


Q14) Which one is an acidic dye ? Show Answer


Q15) Red links are prepared from Show Answer


Q16) Alizarin gives red colour by moderating it with the sulphate of a metal. The metal ion is Show Answer


Q17) Carbon fibres are made from Show Answer


Q18) Microalloyed steel contains small amounts of Show Answer


Q19) Which of the following is an anionic detergent ? Show Answer


Q20) The detergent being used as a germicide is Show Answer


Q21) The environmental friendly method of killing harmful insects is through the use of Show Answer


Q22) Hard soaps are Show Answer


Q23) To which class of organic compounds does soap belong to ? Show Answer


Q24) Toilet soap is a mixture of Show Answer


Q25) Washing soap can be prepared by saponification with alkali of which of the following oil ? Show Answer


Q26) The substance added to harden the soap is Show Answer


Q27) Saponification of an oil or fat gives soap and Show Answer


Q28) Which is psuedo solid ? Show Answer


Q29) Raw material used in the manufacturing of aniline ink is : Show Answer


Q30) Glass can be classified as a/an Show Answer


Q31) If glass is cooled suddenly it becomes Show Answer


Q32) The principal constituent of pyrex glass is Show Answer


Q33) Which one of the following type of glass has smallest coefficient of thermal expansion ? Show Answer


Q34) Which variety of glass is used for the manufacture of optical lenses ? Show Answer


Q35) Which type of the glass cerium oxide as an ingredient ? Show Answer


Q36) Silica glass is Show Answer


Q37) Which one of the following type of glass has a layer of plastic ? Show Answer


Q38) Reinforced glass has Show Answer


Q39) Which of the following provides red colour to ink ? Show Answer


Q40) To which class of organic compounds soap belongs ? Show Answer


Q41) Which of the following is not a fatty acids ? Show Answer


Q42) Toilet soap is a mixture of Show Answer


Q43) Washing soap can be prepared by saponification with alkali of which of the following oil ? Show Answer


Q44) The substance added to harden the soap is Show Answer


Q45) Saponification of an oil or fat gives soap and Show Answer


Q46) Which gives white colour to soap ? Show Answer


Q47) Which one of the following is used to increase the weight of soap ? Show Answer


Q48) Which of the following enzymes hydrolysis triglycerides to fatty acids and glycerol ? Show Answer


Q49) The principal constituent of pyrex glass is Show Answer


Q50) Which glass has the highest percentage of lead ? Show Answer


Q51) Which one of the following is incorrect about flint glass ? Show Answer


Q52) Which one of the following type of glass has a layer of plastic ? Show Answer


Q53) Reinforced glass has Show Answer


Q54) Percentage of silica Show Answer


Q55) For making optical and chemical resistant glass the substance used is Show Answer


Q56) Etching of glass is based on Show Answer


Q57) The material used in solar cell contains Show Answer


Q58) Which gives red colour to ink ? Show Answer


Q59) Which acts as a fungicide in ink ? Show Answer


Q60) Raw material used in the manufcturing of aniline ink is Show Answer


Q61) Which compound is used to stop hydrolysis if organic compound in ink ? Show Answer


Q62) Which gives blue black colour in ink ? Show Answer


Q63) Stamp pad is a Show Answer


Q64) Compound used for shining of ink is Show Answer


Q65) Mortar is a mixture of Show Answer


Q66) Presence of gypsum in cement gives Show Answer


Q67) Which is correct about cement ? Show Answer


Q68) A major constituent of cement besides lime is Show Answer


Q69) The function of sand in mortar is Show Answer


Q70) Which one of the following components of cement sets at the slowest rate ? Show Answer


Q71) Excess of silicon in cement Show Answer


Q72) During setting of cement the reaction is Show Answer


Q73) Concrete with iron frame-work is known as Show Answer


Q74) Lithopone, a substitute of white lead is Show Answer


Q75) Which of the following is a yellow pigment ? Show Answer


Q76) Which oxides are used as drier in paints ? Show Answer


Q77) Red lead is Show Answer


Q78) White lead is Show Answer


Q79) Fillers are used to Show Answer


Q80) Match stick have some solid mixture at one end which is Show Answer


Q81) Which one of the following is used on the side of matches box ? Show Answer


Q82) Gun powder is a mixture of Show Answer


Q83) Artificial silk is Show Answer


Q84) Natural rubber is Show Answer


Q85) Which of the following is a polyamide ? Show Answer


Q86) Which is an example of thermosetting polymer ? Show Answer


Q87) The substance used to harden the rubber for tyre manufacture is Show Answer


Q88) Monomer of teflon is Show Answer


Q89) Terylene is made by polymerisation of tetraphalic acid with Show Answer


Q90) Process involving heating of rubber with sulpher is called Show Answer


Q91) Which of the following is used to make non-stick cookware ? Show Answer


Q92) Bakelite is a polymer of Show Answer


Q93) The presence of sulphur in gunpowder Show Answer


Q94) Chromium oxide is used as an ingredient in paints to obtain Show Answer


Q95) The principle of cleaning by soap is Show Answer


Q96) Sodium stearate is a salt and is used Show Answer


Q97) Which one among the following is the chemical formula of gypsum, which is an ingredient of cement ? Show Answer


Q98) The most important raw materials used in the manufacture of cement are Show Answer


Q99) Which one among the following is the major constituent of soda lime glass ? Show Answer


Q100) The reaction that takes place in soap making is called saponification. Basically soap is sodium or potassium salts of Show Answer


Q101) During explosion of gunpowder, which of the following gases are evolved in the proportion of 1 : 3 ? Show Answer


Q102) Bronze is often used to make statues and medals whereas brass is used in making utensils, scientific apparatus and cartridges. Both brass and bronze are copper containing alloys, yet they differ in their chemical composition for additionally containing Show Answer


Q103) Glass is actually Show Answer


Q104) Which one among the following is the main ingredient in cement ? Show Answer


Q105) Which among the following are the properties of good paint ?
(I) The paint should be opaque and have high covering power.
(II) The solid particles in paint should reflect much of the destructive light to ensure ling life of the paint.
(III) Combination of pigments e.g., white lead and T i O_2 give better result.
(IV) Addition of plasticiser destroy the elasticity of the film and leads to cracking.
Select the correct answer using the code given below : Show Answer


Q106) By which one among the following mechanism, soap removes dirt (soil) from cloth ? Show Answer


Q107) Consider the following statements regarding aluminium paint.
(I) It is fairly good heat-resistant.
(II) It proposes good electrical resistance.
(III) It cannot be used for hot water pipe.
Which of the statements given above is/are correct ? Show Answer


Q108) Which one of the following chemicals is used in beauty parlours for hair-setting ? Show Answer