D is

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B

C

D

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If A=[[a, b],[ c ,d]] , then a d j\ A is [[-d,-b],[-c, a]] (b) [[d,-b],[-c ,a]] (c) [[d, b],[ c, a]] (d) [[d, c],[ b ,a]]

If (a+3d)/(a+9d)=(a+d)/(a+5d)=k then k is equal to (a,d>0)

Study the following information and answer the questions given below : B of D means 'B is the mother of D', B # D means 'B is the father of D', B £ D means 'B is the sister of D', B div D means 'B is the uncle D', B + D means 'Bis the brother of D', B = D means 'B is the aunt of D'. If M + K div D is given, then how is D related to M?

D,C and D in the sequence are :

A ,\ B\ a n d\ C can reap a field in 15 3/4 days : B ,\ C\ a n d\ D in 14 days: C ,\ D\ a n d\ A in 18 days: D ,\ A\ a n d\ B in 21 days. In what time can A ,\ B ,\ C\ a n d\ D together reap it?

The letter D in D-glucose signifies.

Find the inverse of each of the matrices given below : Let D= "diag" [d_(1),d_(2),d_(3)] where none of d_(1),d_(2),d_(3) is ), prove that D^(-1)="diag" [d_(1)^(-1),d_(2)^(-1),d_(3)^(-1)] .

If D=diag[d_(1),d_(2),...d_(n)], then prove that f(D)=diag[f(d_(1)),f(d_(2)),...,f(d_(n))], where f(x) is a polynomial with scalar coefficient.

[" An alpha-particle is projected towards "],[" a Cu nucleus,an Au nucleus and an Ag "],[" nucleus with same speed from a large "],[" distance.The distances of closest "],[" approaches were found to be "],[d_(1),d_(2)" and "d_(3)" respectively.Which of the "],[" following is correct? "],[[" (A) "d_(1)

Statement 1: if D=diag[d_(1),d_(2),,d_(n)], then D^(-1)=diag[d_(1)^(-1),d_(2)^(-1),...,d_(n)^(-1)] Statement 2: if D=diag[d_(1),d_(2),,d_(n)], then D^(n)=diag[d_(1)^(n),d_(2)^(n),...,d_(n)^(n)]

NTA MOCK TESTS-NTA JEE MOCK TEST 81-CHEMISTRY
  1. Select the Z - isomer from the following alkenes

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  2. Consider the following reactions : 2XS+3O(2)overset(Delta)to 2XO+2SO...

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  3. D is

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  4. Three isothermal plots (P versus V) A, B and C are plotted at three te...

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  5. Substance A(2)B(g) can undergoes decomposition to form two set of prod...

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  6. overset(NaBH(4))(leftarrow) PhCH=CH-CHOunderset(2. H(3)O^(+))overset(1...

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  7. (CH(3))(2)C=CHCOCH(3) can be oxidised to (CH(3))(2) C=CHCOOH by

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  8. Pick out the incorrect statement.

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  9. In a copper voltmeter, mass deposite in 30 seconds is 'm' gram. If the...

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  10. The final product C in the following reaction is

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  11. 0.2 gm sample of benzoic acid C(6)H(5)COOH is titrated with 0.12 M Ba(...

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  12. (CH(3))(2)CHOH overset("Mild")underset("oxidation[O]")rarr (X) overset...

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  13. Which of the following compound will given yellow precipitate on ...

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  14. Which of the following oxyacids acts as most reducing agent?

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  15. Consider the following acids 1. MeCH(2)COOH 2. Me(2)CHCOOH 3. Me...

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  16. The plot of (1)/(Y(A))" Vs "(1)/(x(A))((1)/(Y(A))" on y - axis") where...

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  17. The transition elements are more metallic then p - block elements beca...

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  18. Which of the following reaction are possible ? (1) ArN(2)^(+) + CuBr...

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  19. Which of the following order is correct for the property mentioned in ...

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  20. How many of these molecules are diamagnetic and have bond order more t...

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