Which of the following gives a yellow precipitate when treated with \(\text{I}_2\) in presence of \(\text{NaOH}\) ?

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

Answer the question on basis of passage given below :
P block elements are placed in groups 13 to 18 of the periodic table. Their valence shell electronic configuration is \(ns^2 np^{1-6}\). Group 16 of the p block elements are known as the group of chalcogens having \(ns^2 np^4\) as their general electronic configuration. They exhibit number of oxidation states but the stability of \(- 2\) oxidation state decreases down the group. They are sometimes also known as group of chalcogens as the name is derived from the Greek word for brass and points to the association of sulphur and its congeners with copper. Their ionisation enthalpy decreases down the group. Oxygen shows anomalous behaviour due to its small size and high electronegativity.
Given below are the Hydrides formed by group 15 elements. Choose the correct decreasing order of basicity of the following hydrides :
(A) \(AsH_3\)
(B) \(PH_3\)
(C) \(NH_3\)
(D) \(BiH_3\)
(E) \(SbH_3\)
Choose the correct answer from the options given below :

The half life of decaying \({ }^{14} C\) is 6000 years approximately. How much time is needed to decaying \(80 \%\) of \({ }^{14} C ?[\log 5=0.6990]\)

In the following reaction, the product A is

Match List I with List II

List-I	List-II
A. Benzophenone \(\rightarrow\) Diphenylmethane	I. \(\text{LiAlH}_4\)
B. Benzaldehyde \(\rightarrow\) 1-phenylethanol	II. DIBAL-H
C. Cyclohexanone \(\rightarrow\) Cyclohexanol	III. \(\text{NH}_2\text{NH}_2\text{, KOH}\)
D. Methylbenzoate \(\rightarrow\) Benzaldehyde	IV. \(\text{CH}_3\text{MgBr, H}_2\text{O}\)

" Choose the correct answer from the options given below:

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

Match List I with List II.

LIST I	LIST II
A. Epidermophyton sp.	I. Typhoid
B. Haemophilus influenzae	II. Elephantiasis
C. Wuchereria malayi	III. Ringworm
D. Salmonella sp.	IV. Pneumonia

Choose the correct answer from the options given below:

In biolistic method, the cells are bombarded with high velocity microparticles of:

Match List I with List II. "A is a non-singular matrix of order n."

List - I	List - II
(A) \(|\operatorname{adj} A |\)	(I) \(\frac{1}{| A |} A\)
(B) \((\operatorname{adj} A)^{-1}\)	(II) \(2^n|A|\)
(C) \(\operatorname{adj}(\operatorname{adj} A )\)	(III) \(| A |^{n-2} A\)
(D) \(|2 A |\)	(IV) \(|A|^{n-1}\)

Choose the correct answer from the options given below:

When an n-p-n transistor is used as an amplifier, then :

The system of equations
\(\begin{aligned} & x-3 y-8 z=-10 \\ & 2 x+5 y+\lambda z=13 \\ & 3 x+y-4 z=0\end{aligned}\)
has infinite number of solutions if the value of \(\lambda\) is equal to:

The term "biodiversity" was popularised by: