Recent questions and answers in Chemistry in everyday life

X and Y are two volatile liquids with molar weights of $10\; g\; mol^{–1}$ and $40\; g\; mol^{–1}$ respectively. Two cotton plugs, one soaked in X and the other soaked in Y, are simultaneously placed at the ends of a tube of length $L = 24\; cm$, as shown in the figure. The tube is filled with an inert gas at 1 atmosphere pressure and a temperature of $300\; K$. Vapours of X and Y react to form a product which is first observed at a distance d cm from the plug soaked in X. Take X and Y to have equal molecular diameters and assume ideal behaviour for the inert gas and the two vapours.The value of d in cm (shown in the figure), as estimated from Graham’s law, is :

answered Jan 18, 2016 by meena.p

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A dye imparts red colour on fabric . What colour of light was absorbed by the dye ?

answered Mar 17, 2014 by yamini.v

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An azo dye is formed by interaction of an aromatic diazonium chloride with

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Red ink is prepared from

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The substances which affect the central nervous system and induce sleep are called

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The antiseptic present in Dettol is

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Which of the following is a common antacid ?

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Penicillin was first discovered by

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A substance which can act both as an antiseptic and disinfectant is

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' Placebo ' is often given to patients it is :

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The drug used as an anti - depressant is

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Artificial sweetener used in soft drinks is :

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Which of the following is a *** - attractant pheromone ?

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Which of the following is an insecticide ?

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Which is plant growth inhibition ?

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Which of the following is a broad spectrum antibiotic ?

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Which of the following medicines is required against malaria ?

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Alizarin belongs to the class of

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Which of the following is a triphenylmethane dye ?

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To which class of dyes does phenolphthalein belong ?

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A medicine which promotes secretion of urine is called

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Luminal , a barbiturate drug is used as an/a

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Which of the following drugs is an analgesic ?

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Further growth of cancerous cells in the body is arrested by ?

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Morphine is

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Which of the following medicines brings down the temperature of the body ?

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Aspirin is chemically called

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In india which dye of the following was prepared from a plant grown on a large scale in india ?

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Which of the following is an alkaloid ?

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Which one is an antibiotic ?

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Which of the following term means pain killing?

answered Mar 11, 2014 by meena.p

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What is the name of the chemical structure shown below:

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Which of the following drug acts as an antipyretic as well analgesic?

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Match the correct drings to the group they belong to :-

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Which of the following antibiotic is used against tuberculosis?

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Which of the following drug can only kill micro organism ?

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Which of the following is an opium derivative narcotic ?

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Which type of dye is used for polyseterrs, nylons and poly carylonitrile ?

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Which drugs is used against gram position positive bacterals?

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Which of the following drugs is bacteriostatic in action ?

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Which of the following anaestheties act after inhaling ?

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Which set of hormones below are trial pheromones ?

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Which of the following is a high potency sweetener?

answered Mar 10, 2014 by meena.p

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Non- biodegradable nature of detergent is

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Which of the following is not a constituent of washing powders ?

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Which of the following elements is not used in micro alloys ?

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Which of the following ceramics are used as super conductors?

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$CFRCs$ are used to make,

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Which of the following is correct about carbon fiber?

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Which of the following is the chief limitation of carbon fibers ?

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