Description : Which element of Group 14 exhibits maximum tendency for catenation?
Last Answer : Ans. Carbon
Description : Name the element of group 14 which exhibits maximum tendency for catenation?
Last Answer : Ans –Carbon.
Description : Define the Phenomenon catenation. Which element has maximum Catenation ability ?
Last Answer : Carbon has maximum catenation ability. The self-linkage of the atoms of elements to produce long chains is called catenation.
Description : The element having maximum tendency of catenation (catenation - Self linking prop- erty)?
Last Answer : Carbon
Description : Give reason for the following observation (L-III) (a)- The tendency for catenation decreases down the group in group 14 (b)- The decreasing stability of+3 oxidation state with increasing atomic no. in group 13. (c)- Molten aluminum bromide is a poor conductor of electricity.
Last Answer : Ans. -(a) it is due to decrease in bond dissociation energy which is due to increase in atomic size C-C > Si-Si >Ge-Ge>Sn-Sn>Pb-Pb. (b)- It is due to inert pair effect. (c)- Molten AlBr3 is poor conductor of electricity because it is covalent compound.
Description : Assertion:Among chalcogens, catenation tendency is maximum for sulphur Reason: S-S bond is stronger than O - O single bond.
Last Answer : Assertion:Among chalcogens, catenation tendency is maximum for sulphur Reason: S-S bond is stronger ... is not correct and Statement-II is correct
Description : what do you mean by Catenation? Why does ‘C’ show the property of catenation to maximum extent?
Last Answer : Ans. It is the phenomenon of an atom to form a strong covalent bond with the atom of itself .Carbon shares the property of catenation to maximum extent because it is small and can form multiple bond to itself.
Description : The element with least melting point in VIA group is
Last Answer : The element with least melting point in VIA group is A. O B. S C. Se D. Te
Description : The element which shows large number of allotropes among VIA group elements
Last Answer : The element which shows large number of allotropes among VIA group elements A. S B. Se C. Po D. Te
Description : What is meant by catenation?
Last Answer : The unique ability of carbon to form bonds with other atoms of carbon is called catenation.
Description : Catenation is a property of the carbon atom which describes its ability to (a) bond with other carbon atoms (b) form double and triple bonds (c) exist in plant and animal form (d) form bonds in its ground state
Last Answer : bond with other carbon atoms
Description : The property of catenation is predominant in
Description : The timer element found in a reverse power relay obtains its operating torque via _____________. A. line voltage B. the main bus C. electromagnets D. a separate battery source
Last Answer : Answer: C
Description : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy
Last Answer : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : ... is false D. (A) is false but (R) is true
Description : The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_(2)SeltH_(2)S` ii) The order of B.P `H_(2)O
Last Answer : The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_ ... are correct D. `i` & iii are correct
Description : Throughout the Ages the maximum number of streams of people came to India via (a) The western Himalayan passes (b) Tibet (c) The sea (d) The eastern Himalayan passes
Last Answer : Ans: (a)
Description : A radio communications link is to be established via the ionosphere. The maximum virtual height of the layer is 100 km at the midpoint of the path and the critical frequency is 2 MHz. The distance between stations is 600 ... optimum working frequency? A. 6.32 MHz B. 2.1 MHz C. 5.4 MHz D. 1.8 MHz
Last Answer : C. 5.4 MHz
Description : Hamzah needs to email a large file to a classmate. Why might he need to use file compression to do so? A. Email services often only let you send compressed data files. B. Compressed files are ... . D. Email services often have maximum file sizes that prevent you sending files that are too large.
Last Answer : D. Email services often have maximum file sizes that prevent you sending files that are too large.
Description : Which element of group V A shows maximum oxidation states ?
Last Answer : Which element of group V A shows maximum oxidation states ? A. bismuth B. phosphorus C. nitrogen D. arsenic
Description : Basic element of operations Management is: a)Customer demand b)Operating system/Process c)Process capacity d)All of the above
Last Answer : b)Operating system/Process
Description : What is the most important element that ensures the accuracy of the Proformas reports? a. Production capacity b. Marketing sales forecasts c. R & D decisions d. Financial decisions e. All of the above
Last Answer : b. Marketing sales forecasts