Halogination of benzene
fractional distillation.pdf
What is fractional distillation? fractional distillation is the seperation technique in which fractions of petroliums are seperated on the basis of their boiling point.
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Implication of operant conditioning pakistani educational system.pdf
implication of operant conditioning pakistani educational system 1. Successive approximation: Successive approximation is a process which means that complicated behaviour patterns are learned gradually through successive steps which are rewarding for the learner. Every successful step of the child must be rewarded by the teacher. 2. Eliminating negative behaviour through extinction: When a learned response is repeated without reinforcement, the strength of the tendency to perform that response undergoes a progressive decrease. Extinction procedures can be successfully used by the class-room teacher in eliminating negative behaviour of students. 3. Reinforcement: Operant conditioning has valuable implications for reinforcement techniques in the class-room. The schools can use the principles of operant conditioning to eliminate the element of fear from school atmosphere by using positive reinforcement. Positive reinforcement is perhaps the most widely used behavioural technique in the sc...
Fossil fuels.pdf
Petroleum is diverse from oil which comes from vegetables sources .But now it is observed that it comes from rocks which are formed by the burial decomposition of ancient plants and animals and wit is also estimated that petroleum products are obtained by the other sources like green algae and sea plants etc n which aerobic germs does not alive and stirring near breakdown of animate stuff and grow into salty shakes which callit is estimated the most of the petroleum products have organic origin and enclose a ampoule in which as excluded from a underdone oil which called salt dome. It has a great influence on our society,basic necessities of humanoid and cautiously etc. There are two theories of the origin of petroleum one is organic theory and other is inorganic origin of petroleum both are accurate but most prefer is organic one in petroleum obtained by the plants and animal sunder the high temperature and pressure arose nearby to each o...
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