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Report | Anilbondkumar asks : . Look at this series: 2, 1, (1/2), (1/4), ... What number should come next? |
Report | Nibha gupta asks : An eight digit number divisible by 9 is to be formed by using 8 digits out of the digits 0, 1, …, 9 without replacement. The number of ways in which this can be done is a- 9! b- 2(7!) c- 4(7!) d-36(7!) plz exlain with sol |
Report | Shashank mishra asks : : Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture? 1.In alkali metals the reactivity increases, but in the halogens it decreases with increase in atomic number down the group. 2.The reactivity decreases in the alkali metals, but increases in the halogens with increase in atomic number down the group. 3.In both the alkali metals and the halogens the chemical reactivity decreases with increase in atomic number down the group. 4.Chemical reactivity increases with incr |
Report | Mohit gupta asks : The total number of protons in 10g of calcium carbonate is (N0 = 6.023 x 1023) |
Report | Pranav chaudhary asks : A gaseous mixture enclosed in a vessel consists of one g mole of gas A with gamma=(5/3) and some amount of gas B with gamma=(7/5) at a temperature T. The gases A and B do not react with each other and are assumed to be ideal. Find the number of g moles of the gas B if gamma for the gaseous mixture is (19/13). |
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