Type of RNA which does not exist is

Arrange the following complexes in decreasing order of absorption of wavelength of light in the visible region:
(A) \(\left[ Co ( CN )_6\right]^{3-}\)
(B) \(\left[ CoF _6\right]^{3-}\)
(C) \(\left[ Co \left( H _2 O \right)_6\right]^{3+}\)
(D) \(\left[ Co \left( NH _3\right)_6\right]^{3+}\)
Choose the correct option from below:

Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
Cris reducing but Mn is oxidising in nature although both have \(d ^{ 1 }\) configuration. It is due to the reason that Cr configuration changes from

The correct statement about 4 f-series elements is:

Which is the correct IUPAC name of the compound \(CH _3 CH = CHC ( Br )\left( CH _3\right)_2 ?\)

Which of the following complexes will show absorbance of light at the lowest wavelength?

The molality of a solution made by dissolving 2.5 g of ethanoic acid (CH₃COOH) in 75 g of benzene is :

Which of the following mendelian disorders are autosome-linked recessive traits?
(A) Thalassaemia
(B) Colour Blindness
(C) Phenylketonuria
(D) Haemophilia
Choose the correct answer from the options given below:

When light of suitable frequency is incident on a photosensitive material, photo electrons are ejected and photoelectric current flows. If the intensity of the incident light is increased, then

White phosphorous shows chemiluminescence because it:

The reagent used to convert propanol to 1-bromopropane is:

Match List-l with List-II

List-l	List-II
A. \(CH _3 CHO \xrightarrow{773 K} CH _4+ CO\)	I. Zero order
B. \(2 NH _3 \xrightarrow{ Pt } N _2+3 H _2\)	II. Carbolic acid
C. \(H _2+ Br _2 \rightarrow 2 HBr\)	III. 1.5
D. \(SO _2 Cl _2 \rightarrow SO _2+ Cl _2\)	IV. First order

Choose the correct answer from the options given below :

In what ratio, water must be added to dilute honey costing ₹ 320 per liter so that the resulted syrup would be worth ₹ 280 per liter?