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Sometimes it happens that when H_(2)Sgasis passed intosolution in dii, HCI yellowish white turbility appears .What do you conclude ? What preperation are takes to check this turbidity?

Sometimes explosion may occurwhile distilling ether. It may be due to the presence of :

Something yellow turbidity appears on passing H_(2)Sgas even in the absence of the second group radicals. Theis happens because

Some substances are strongly attached by magnetic field. What do we call them?

Some statements on [Co(NH_3)_6]^(3+) (a) oxidation number of Co is +3 (b) octahedral shape (c) high spin complex d) hybridization of cobalt is d^2sp^3 The correct set of statements

Some statements are given below about oils and fats 1. oils can be converted into fats and vice versa 2. oils and fats are triesters 3. oils have high melting point than fats 4. fats have strong Vander Waals force ofattraction than oils, Among the above, correct statement(s) is/ are

Some statements are given below about lyophillic sol I) These are solvent hating colloidal solutions II) These are very stable. III) All high molecular weight carbon compounds form in water, lyophillic sols. The correct combination is

Some statements are given below about lanthanides : (A)Their tripositive ions are all coloured (B) With increase in atomic number, their atomic radii increases (C) Gadolinium exhibit oxidation state of+3 only (D) Last electrons in them enters into 5f orbitals Among the above

Some statements are given below about diethyl ether, 1. its boiling point lower than 1-butanol 2. it is used as anaesthetic 3. with dilute H_2SO_4, it give two homologue 4. with cold HI give iodoethane Among the above, correct statement(s) is/are

Some statements are given below about ethers, 1. they are Lewis bases 2. their boiling point increases with increasing molecular weight 3. all are volatile liquids at room4. with water dimethyl ether form hydrogen bondAmong the above, false statement(s) is/are temperature

Some statements are given below about ethers, (1.) oxygen atom is sp^3-hybridised (2). they are liquids at room temperature (3). they have higher boiling point than alcohols (4.) they are very active Among the above, correct statement(s) is/are

Some statements are given below about ethers, (1) with strong acid, forms oxonium salt (2 )mixture of diethyl ether and ethanol called as natalite (3 )t-butyl halide and sodium ethaoxide give ethyl t-butyl ether (4) these are acids Among the above, false statement(s) is/are

Some statements are given below about, carbolic acid 1. it react with Na metal 2. it gives violet colour with neutral FeCl_ 3 3. it forms only one monobrominated product 4. it is acidic in nature. Among the above, true statement(s) is/are

Some statements are given below : (A) In alkyl carbonium ions, C^+ "is" sp^2 hybridized (B) Decreasing order of stability of carbocation is t gt s gt p (C ) The central carbon atom has an open sextet of electrons Among the above, true statements is / are :

Some statements are given below 1. -CONH-linkage present in all proteins 2. proteins are addition polymer of alpha-amino acids 3. proteins are condensation polymer of alpha-amino acids 4. all polyamide are called proteins Among the above, correct statement(s) is/ are

Some statements are given below

some statement are givenbelow glucose is penta hydroxy aldehyde fructose is ketohexose contain four chiral center polymer of glucose is starch Fatty acids are aliphatic saturated higher monocarboxylic acids. Among the above, correct statements (s) is/are

Some statement are made below

Some statement are given below about SN^(1) reaction 1. DeltaH is negative 2. the first step is slower than second step 3. kinetics depends on alkyl halide taken 4. product formed as racemisation of configuration Among the above the incorrect statement(s) is/are

Some statement are given about corrosion . The incorrect statement is

Which of the following statements about condensation polymers are correct ?

Vinyl polymers are also known as A) Additional polymers B) Chain reaction polymers C) Condensation Polymers The correct answer is

Some square planar complexes of Ni(II) are diamagnetic while some others are paramagnetic. Justify.

Some solid NH_(4)HS is placed in a flask containing 0.5 atm of NH_(3), what would be pressure of NH_(3)and H_(2)S when equilibrium is reached NH_(4)HS_((g))hArrNH_(3(g))+H_(2)S_((g)),K_(p)=0.11

Some salts athough containing two different metallic elements give test for one of them in solution. Such salts are called :

Some satatments are given below about reacment 1. It may rotate plane of plane polarised light towards right side 2. it is a mixutre to two optical isomers in equimolar proportions. 3. it has same chemical properties. 4. it is optically incative by external compensation

Some salts which give brown vapours with conc, H_(2)SO_(4) may be :

Some salts although containing two different metallic elements give test for only one of them in solution. Such salts are

Some salts, although containing two different metal elements give test for only one of them in, solution, such salts are:

Some salts although containing two different metallic elements give test for one of them in solution Such salts are :

Some quantity of electricity being used to liberate iodine (at anode) and a metal x (at cathode). The mass of xliberated at cathode is 0.617 g and the liberated iodine completely reduced by 46.3 mL of 0.124 M sodium thio-sulphate solution. what is equivalent weight of metal ?

Some reactions of amines are given. Which one is not correct.

Some reaction of the ore A of the metal M are given below: Identify the ore and write the rections involved.

Some pule green crystals are stronglyheated .The gases then off are passed into a container surrounded by ice and thenthrough a solutionof acidified KMnO_(4) The KMnO_(4) isdecolrised, a waxywhite solid iwsformedin the ice containerthis is dissolvesd in water .The solutionwill

Some proteins are crucial to communication system in the body called...

Some polymers are given below : PVC, Orion, Dacron, Polymethyl acrylic acid (PMAA), Polymethyl methacrylate (PMMA), Buna-S-rubber, Neoprene, Bakellite, Glyptal, Nylon-6, Gutta percha rubber. How many of these are ''COPOLYMERS''?

Some polar crystals produce small electric current on heating . This phenomenon is called

Some organic compounds are purified by distillation at low pressure because the compounds are:

Some of the reasons of reacting NH_3 with hydrogen chloride are given below. The incorrect is

Some of the properties of the two species, NO_(3)^(-) and H_(3)O^(+) are described below. Which one of them is correct?