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+3
votes
1
answer
Red pulp and white pulp are found in
asked
Jan 3, 2021
in
Class 11
by
kratos
class-11
anatomy-of-flowering-plants
body-fluids-and-circulation
+2
votes
1
answer
एक घर में प्रतिदिन 40 वाट की चार बल्ब 5 घण्टे, 60 वाट के 2 बल्ब, 6 घंटे , 80 वाट के ३ पंखे 6 घण्टे चलते हैं, तो इस घर में एक महीने में कितना खर्च आएगा
asked
Jan 3, 2021
in
Class 10
by
kratos
class-9
विद्युत
विद्युत-धारा
कार्य-ऊर्जा-और-शक्ति
class-10
+1
vote
1
answer
Results of 1st world war are known. Discuss how it became a reason for the 2nd world war.
asked
Jan 9, 2021
in
Class 10
by
kratos
class-10
+3
votes
1
answer
create a dictionary whose keys are months names and whose values are number of days in the corresponding month
asked
Jan 5, 2021
in
Class 12
by
kratos
class-12
permutations
sets and dictionary
class-11
lists
tuples
+1
vote
1
answer
Double fertilisation is reported in plants of both, castor and groundnut. However, the mature seeds of groundnut are non-albuminous
asked
Jan 8, 2021
in
Class 12
by
kratos
class-12
neet
cbse
aiims
modes of reproduction
plant reproduction
+1
vote
1
answer
Why is nasal breathing advantageous over mouth breathing ? Explain .
asked
Jan 3, 2021
in
Class 11
by
kratos
breathing
exchange of gases
class-11
breathing-and-exchange-of-gases
+1
vote
1
answer
$CH_3OH$, methanol can be prepared from CO and $H_2$. $CO(g)+2H_2(g)hArr CH_3OH(g)$ The value of $K_p$ at 500 K is $6.23xx10^(-3)$ When total pressure
asked
Jan 4, 2021
in
Class 11
by
kratos
class-11
chemical-equilibrium
+1
vote
1
answer
Consider the reactions: (P) $* ("rhombic") +(3)/(2)O_(2)(g) to SO_(3)(g), " "DeltaH_(1)$ (Q) *$("Monoclinic")0 +(3)/(2)O_(2)(g) to SO_(2)" "DeltaH_(2)
asked
Jan 4, 2021
in
Class 11
by
kratos
class-11
thermodynamics
+1
vote
1
answer
All the following statements about the 3d - series elements are true except that (a) scandium has lowest melting point
asked
Jan 9, 2021
in
Class 12
by
kratos
class-12
structure-of-atom
class-11
d-and f- block elements
transition and inner transition elements
class-10
+2
votes
1
answer
Evaluate : ∫√1 + sin 2x dx
asked
Jan 2, 2021
in
JEE
by
kratos
jee mains 2019
indefinite integral
class-12
+3
votes
1
answer
Assertion $:H_(2)O_(2)$ has higher boiling point than water Reason $:$ It has stronger dipole interactions than that shown by water.
asked
Jan 4, 2021
in
Class 11
by
kratos
hydrogen
class-11
+3
votes
1
answer
Cartain materials such as turpentine oil, unsaturated organic compound, phosophorus, metals such as $Zn$, and $Pb$, etc., can absorb $O_(2)$ from air
asked
Jan 8, 2021
in
Class 11
by
kratos
class-11
redox-reactions
+1
vote
1
answer
Which of the following is a hydrogen bonded molecular crystal?
asked
Jan 6, 2021
in
Class 12
by
kratos
class-12
neet
jee
aiims
jee mains
solid state
+2
votes
1
answer
What do analogus organs explain as an evedence of organic evolution.
asked
Jan 8, 2021
in
Class 12
by
kratos
isc
class-7
class-12
neet
class-10
aiims
organic evolution
heredity and evolution
icse
+1
vote
1
answer
Electrons in a sample of H-atoms make transition from state n=x to some lower excited state. The emission spectrum from the sample is found to contain
asked
Jan 7, 2021
in
Class 11
by
kratos
class-11
atomic-structure
+1
vote
1
answer
Write any 3 main activities of a Travel Agency?
asked
Jan 5, 2021
in
Class 12
by
kratos
class-12
history
class-10
tourism
+1
vote
1
answer
If $x= - 5 $ is a root of the quadratic equation $kx^(2) + 13x - 10 = 0 $, then complete the following activity to find the value of k .
asked
Jan 9, 2021
in
Class 10
by
kratos
model-question-paper
class-10
+2
votes
1
answer
Give the $IUPAC$ name of the following compound.
asked
Jan 10, 2021
in
Class 11
by
kratos
organic-compounds
class-11
nomenclature
+3
votes
1
answer
Is sodium less reactive than potassium ?
asked
Jan 2, 2021
in
Class 10
by
kratos
metals-and-nonmetals
class-10
+2
votes
1
answer
Write the reaction involved in the preparation of silicon carbide .
asked
Jan 7, 2021
in
Class 10
by
kratos
carbon-and-its-compounds
class-8
class-10
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