Chemistry Cement is made hard with Dissociation of water Dehydration Hydration and dissociation of water Polymerisation Dissociation of water Dehydration Hydration and dissociation of water Polymerisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement containing excess amount of lime Cracks during setting Becomes more strong Is slow setting Is quick setting Cracks during setting Becomes more strong Is slow setting Is quick setting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Hydrogen peroxide Ozone Barium peroxide Sodium peroxide Hydrogen peroxide Ozone Barium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Ultraviolet rays (UV) Infra-red (IR) Gamma rays X–rays Ultraviolet rays (UV) Infra-red (IR) Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission? European Union, China, USA, India China, India, European Union, USA USA, India, China, European Union China, USA, European Union, India European Union, China, USA, India China, India, European Union, USA USA, India, China, European Union China, USA, European Union, India ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water cycle refers to Water distribution in relatively dry areas An integrated attempt to recycle water in relatively arid regions Scientific management of water in areas excessively plagued with water-logging Constant movement of water from ocean to land and back to ocean once again Water distribution in relatively dry areas An integrated attempt to recycle water in relatively arid regions Scientific management of water in areas excessively plagued with water-logging Constant movement of water from ocean to land and back to ocean once again ANSWER DOWNLOAD EXAMIANS APP
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