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13k
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Explain intrinsic and doped conducting polymer with examples.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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Explain effects of heat on polymers and factors affecting it. Define glass transition temperature of polymer.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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Describe PHENOL FORMALDEHYDE
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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5.6k
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Mention different types of moulding techniques. Explain fabrication of plastics with the help of injection moulding.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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What are plasticizers and fillers and state its functions.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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What are natural rubbers? State its drawbacks
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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A Zeolite softener was regenerated by passing 200 litre of NaCl solution, containing 50g/litre of NaCl. How many litre of water of hardness 50 ppm can be softened by this softener?
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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5.5k
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Write note on Ultra filtration and Reverse osmosis.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
4
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19k
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Calculate lime & soda recorded for softening 1 litre of water.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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Calculate all types of hardness of water sample
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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calculate the amount of lime (85% pure) and soda (95% pure)
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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1.4k
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Calculate COD of the effluent in MS\lit.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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33k
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Explain the principle of EDTA method.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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12k
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What is the total hardness of sample of water containing following impurities in $mg/lCa(HCO3)2=162$ , CaCl2=22.2 , NaCl=20 , $MgCl_2=95$
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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Calculate amount of lime (90% pure) and soda (98% pure)
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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1.5k
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Water sample softened by zeolite container
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
4
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62k
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Calculate temporary, permanent and total hardness in ppm.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
4
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6.4k
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Short notes on $-$ a) reverse osmosis b) electro dialysis c) ultra-filtration
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
1
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34k
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Discuss zeolite process with the help of diagram, chemical reactions and state its advantages and limitations.
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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With the help of chemical equations explain the principle of lime soda process
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
3
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29k
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Explain demineralization of water by ion exchange method
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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1.4k
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Differentiate between MOD & COD
engineering chemistry updated 8.5 years ago by teamques10 ★ 69k
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954
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To a $ 25 $ ml $ { H_2O_2 } $ solution excess of acidified solution of $ { KI } $ was added. The iodine liberated require $ 20 $ ml of $ { 0.3 (N) Na_2S_2O_3 } $ solution for complete reaction.
engineering chemistry updated 8.6 years ago by teamques10 ★ 69k
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1000
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What is the equivalent weight of $ C_{12}H_{22}O_{11} $
engineering chemistry updated 8.6 years ago by teamques10 ★ 69k
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