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Recent questions tagged 109
Questions
If $C_n$ is the coefficient of $x^n$ in the expansion of $(1+x)^n$, then $C_1 + 2C_2 + 3C_3 + ...+nC_n$ is equal to :
jeemain
math
past papers
1998
109
asked
Dec 19, 2018
by
pady_1
0
answers
In a triangle $ABC, \; r_1 \cot \frac{A}{2} + r_2 \cot \frac{B}{2} + r_3 \cot \frac{C}{2}$ is equal to :
jeemain
math
past papers
1999
109
asked
Dec 19, 2018
by
pady_1
2
answers
If $(m_v \frac{1}{m_i}), \; i = 1, 2,3,4$ are noncyclic points, then the value of $m_1m_2m_3m_4$ is :
jeemain
math
past papers
2000
109
asked
Dec 19, 2018
by
pady_1
0
answers
The events A and B have probabilities 0.25 and 0.50 respectively. The probability that both A and B occur simultaneously is 0.14, then the probability that neither A nor B occurs, is :
jeemain
math
past papers
2001
109
asked
Dec 11, 2018
by
pady_1
1
answer
Racemic mixture is formed by mixing two :
jeemain
chemistry
past papers
2002
109
asked
Dec 11, 2018
by
pady_1
0
answers
The enthalpy change for a reaction does not depend upon the :
jeemain
chemistry
past papers
2003
109
asked
Dec 11, 2018
by
pady_1
0
answers
The equivalent conductances of two strong electrolytes at infinite dilution in $H_2O$ (where ions move freely through a solution) at $25^{\circ}C$ are given below : <br> $\bigwedge^{\circ}_{CH_3COONa }= 91.0\;S \;cm^2/equiv $ <br>$ \bigwedge^{\circ}_{HCl} = 426.2 \; S\;cm^2/equiv$ <br> What additional information/quantity one needs to calculate $\bigwedge^{\circ}$ of an aqueous solution of acetic acid ?
jeemain
chemistry
past papers
2007
109
asked
Nov 29, 2018
by
pady_1
0
answers
18 g of glucose $(C_6H_{12} O_6)$ is added to 178.2 g of water. The vapour pressure of water for this aqueous solution at $100^{\circ}C$ is :
jeemain
chemistry
past papers
2006
109
asked
Nov 13, 2018
by
pady_1
0
answers
The number of hydrogen atom(s) attached to phosphorus atom in hypophosphorous acid is :
jeemain
chemistry
past papers
2005
109
asked
Nov 5, 2018
by
pady_1
0
answers
The standard e.m.f of a cell, involving one electron change is found to be 0.591 V at $25^{\circ}C$. The equilibrium constant of the reaction is $(F = 96,500\;C\;mol^{-1} : R = 8.314 \; JK^{-1}\;mol^{-1})$
jeemain
chemistry
past papers
2004
109
asked
Nov 5, 2018
by
pady_1
1
answer
Two two functional groups characteristic of sugars are
neet
past papers
2018
109
botany
asked
Aug 21, 2018
by
pady_1
1
answer
Good vision depends on adequate intake of carotene rich food. <br> Select the best option from the following statements. <br> (a) Vitamin A derivatives are formed from carotene. <br> (b) The photopigments are embedded in the membrane discs of the inner segment <br> (c) Retinal is derivative of Vitamin A <br> (d) Retinal is a light absorbing part of all the visual photopigments
neet
zoology
past papers
2017
109
asked
Aug 21, 2018
by
pady_1
1
answer
Which of the following would appear as the pioneer organisms on bare rocks?
neet
botany
past papers
2016
109
asked
Aug 21, 2018
by
pady_1
1
answer
The imperfect fungi which are decomposers of litter and help in mineral cycling belong to :
neet
botany
past papers
2015
109
asked
Aug 21, 2018
by
pady_1
1
answer
Deficiency symptoms of nitrogen and potassium are visible first in:
neet
botany
past papers
2014
109
asked
Aug 20, 2018
by
pady_1
1
answer
The most abundant intracellular cation is
neet
zoology
past papers
2013
109
asked
Aug 20, 2018
by
pady_1
1
answer
Which one of the following does not differ in E.coli and Chlamydomonas
neet
botany
past papers
2012
109
asked
Aug 20, 2018
by
pady_1
1
answer
In eubacteria, a cellular component that resembles eukaryotic cell is :
neet
botany
past papers
2011
109
asked
Aug 16, 2018
by
pady_1
1
answer
Apomictic embryos in citrus arise from :
neet
botany
past papers
2010
109
asked
Jul 26, 2018
by
pady_1
1
answer
If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is :
neet
zoology
past papers
2009
109
asked
Jul 26, 2018
by
pady_1
2
answers
The length of different internodes in a culm of sugarcane is variable because of:
neet
botany
past papers
2008
109
asked
Jul 26, 2018
by
pady_1
1
answer
Wich one of the following is a slime mould ?
neet
zoology
pastpapers
2007
109
asked
Jul 26, 2018
by
pady_1
1
answer
Examination of blood of a person suspected of having anemia, shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following is likely to alleviate his symptoms ?
neet
zoology
past papers
2006
109
asked
Jul 25, 2018
by
pady_1
1
answer
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these -
neet
zoology
past papers
2005
109
asked
Jul 24, 2018
by
pady_1
1
answer
A normal woman, whose father was colour-blind is married to a normal man. The sons would be :-
neet
botany
past papers
2004
109
asked
Jul 24, 2018
by
pady_1
1
answer
Which one of the following contains the largest quantity of extracellular material :-
neet
zoology
past papers
2003
109
asked
Jul 24, 2018
by
pady_1
2
answers
Which of the following are homologous organs :-
neet
zoology
past papers
2002
109
asked
Jul 23, 2018
by
pady_1
1
answer
When dominant and recessive allels express itself together it is called : -
neet
botany
pastpapers
2001
109
asked
Jul 20, 2018
by
pady_1
1
answer
Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered :
neet
botany
past papers
2000
109
asked
Jul 20, 2018
by
pady_1
2
answers
Nucleic acid in HIV :
neet
zoology
past papers
1998
109
asked
Jun 15, 2018
by
pady_1
1
answer
Convert 21.72 to fraction.
class5
math
olympiad
fractions
decimals
109
asked
Dec 31, 2015
by
pady_1
0
answers
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